Note - if you have 3-bolt cranks and don't want to replace them for the 8-bolt version, we do sell a different power meter that will fit your 3-bolt cranks. $559.99. We know that success for you means beating your own record, improving your own time, and reaching your personal goals. Power is measured in watts. In the meantime, I had a pair of SRAM NX Eagle cranks (non-boost) on another bike and I temporarily installed them on the Surly. Your browser does not support all of our websites functionality. How to use the Stages Cycling app 12. So you will need a power2max compatible MTB chainring as well. See Compatibility tab for more information. SRAM NX Eagle Trigger Shifter 12spd MTB R 999.99. A power meter measures your power output, enabling you to make data-backed decisions that prevent burnout and injuries that come from over-exertion. Saddles Seat Posts Dropper Seat Posts Pedals Power Meters Vintage Components All Components. What power meter can I use? My cousin eventually tracked down his wife's work phone number after he went quiet with the money. Eagle XX1 and X01. My GX shifter, while more firm, also feels way more positive than Shimano did. Long days, quick rides and everything in-between, GX Eagle is the ecosystem at its best. These can be purchased on the same product page as your power meter. This shifter offers a lot of grip and more accurate gear shifting. A watt is a basic unit of power equal to 1 joule per second. Please also note, this crankset requires the use of a SRAM DUB bottom bracket. [emoji106]. The new SRAM GX Eagle derailleur in detail. If your on the fence about training with a PM, go for it, its a must for serious cyclists! The XX1 Eagle DUB 1-speed power meter with a bolt circle diameter of 104 millimeters is ideally suited for SRAM 1x12 X-Sync 2 chainrings. We also wanna thank you for being a great customer we appreciate your business and please let us know if there is anything else we can do! Quarq XX1 Eagle Power Meter Crankset 12-speed 32T DUB Boost. Engineered to mirror our podium topping XX1 and X01 Eagle AXSderailleurs, the new SRAM GX Eagle AXS derailleur comes from the same bloodline, featuring the rugged dependability youve come to expect from our GX Eagle drivetrains. Here, Sram has clearly looked to Red with the aesthetics, albeit with black replacing silver as the base colour. | Terms and Policies, https://www.evobikes.co.za/sram-stylo-carbon-dub-175mm-crank.html, South African XCM Championships Showdown Headlines 2023 Bike Fest Paarl, e-Fort Symbtech Take on CM.com Womens Category at the Absa Cape Epic, SRAM announce second-generation Force AXS, Stuff you learn(t) the hard way by being your own mechanic, All the relationship of the spindle to the bottom bracket 8-bolt crank interface is compatible with Quarq Dzero XX1 Eagle power meter spider Not compatible with SRAM's 3-bolt direct mount interface Spider and chainrings sold separately Item Specifications . Crankset. In most cases, we recommend the Quarq SRAM X-SYNC 2 12-Speed Chainrings for best performance (also available on this page). Rob manages all of the testing here at BikeRadar and across our magazines, Mountain Biking UK and Cycling Plus. Kompatibilitt Innenlager: SRAM DUB Road Wide (optional, nicht im Lieferumfang enthalten) Kompatibilitt Ketten: SRAM 12-fach Flattop; SRAM Eagle (nur in Kombination mit Eagle Kassette und Schaltwerk) Kompatibilitt Hinterbau: 142 mm oder 148 mm BOOST Fahrergewicht: k.A. document.write(new Date().getFullYear()); In most cases, yes you can. No complaints here. Perform the Setup Calibration before your first ride, after installing a new bottom bracket on your bike, or swapping your SRAM crankset to a new frame. Riders can quickly and easily learn more about how their bike is working for them and consider adjustments. Many thanks indeed guys. SRAM X-SYNC 2 Eagle is the next evolution of SRAM X-SYNC technology. Easton EA90 46T. BUT, Wolftooth makes a 30T 104BCD that has a cutout that allows for clearance. You can customise the functions of the shifting buttons to your needs via the SRAM AXS app. You also get 10K Temperature compensation which ensures the power meter stays accurate regardless of changes in temperature. By submitting this form, you consent to the processing of the above information in the U.S. by SRAM LLC. Sram. This is a real plus for fast and pedally singletrack. SIGN UP FOR EXCLUSIVE OFFERS, UPDATES AND PROMOTIONS! Its simple to do with a compatible cycling computer or the AXS App. Train harder, ride faster and unlock your ultimate potential. Mandos de cambio; Frenos; Cambios; . Batteries (2) Batteries (2 products) . p2m units accommodate oval rings without any problems due to the rate as which they sample. -----. They work fantastic. The Ecosystems control center and the hardline to your bicycles drivetrain, the GX Eagle shifters positive feel gives the right rider input to make shifts crisp time after time. Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer or striving for a personal best; one thing we know, success takes time. The Stages Carbon for 30mm and Mountain GXP models are compatible with a wide variety of cranksets from SRAM. But its not all about the cassette because SRAM has revamped the rear mech too. Sign in to manage your newsletter preferences. For these riders, the GX Eagle DUB crankset allows them to go all in, every day they ride. power2max NGeco SRAM MTB Power Meter It was a pleasure doing business with you! Josh was really helpful and answered all of our questions. Our incredibly resilient Overload Clutch design allows the derailleur to sense impact and safeguard against potential damage. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Ride worry-free with 400+ ride hours of battery life and easy battery checks. Mick Kirkman/SRAM. To help clear up any confusion on your specific model, we have a few tips on determining if your SRAM mountain crankset is compatible. This results in more useful gearing and better shifting across all configurations . You will need the following tools for installation of this product. If that jump sounds a little too much, SRAM still offers the 10-50t cassette. With all power meter models, it is crucial that you also check for adequate clearance on your bike frame by performing our basic compatibility test, illustrated in our frame compatibility article. Your browser does not support all of our websites functionality. I contacted Quarq, and they said the lowest you can go is 32T due to clearance issues. Thanks for this awesome review on your Quarq SRAM XX1 Eagle DUB Power Meter. SRAM RED D1 DUB Crank Set 48/35 Teeth black. Power Meters, SRAM {{ data.msg }} . Same link geometry as XX1 Eagle, with solid pins and a more modest finish treatment. But the Trek factory spec sheet says that what I have is "SRAM Stylo Carbon Eagle, 32T" and the BB is PF92. Help us reduce our impact. We really appreciate it. We hope you will enjoy your new Quarq SRAM XX1 Eagle DUB Power Meter! Manage your Stages Dash M200, L200, M50, and L50 in the Stages Cycling app. And it only takes an hour to charge. My frame is super boost. SRAM GX Eagle 12-Speed Chain 126 links With PowerLock, Silver/Gray The chain is the heart of the Eagle 1x12 drive train, ensuring quiet operation, long life and precise shifting. Thanks Quagga. Two weeks of riding without power, and just HR and I didn't miss the PM. unless you want to get a new crank that is about your only option. Hi Tom. Stages Power L Carbon Cycling Power Meter for 30mm - SRAM Race Face Next SL & FSA 386EVO. It comes in both Boost and Standard chainline configurations. If your SRAM crankset uses the GXP standard, you can install the Stages GXP for SRAM Power Meter. You are working hard, pushing yourself to new heights in some of the toughest conditions. Combine the brand's dependable-workhorse groupset, with the precision shifting of its AXS range, and . Grab your bike, smart phone, and cycling computer and complete the following steps. Luke N (verified owner) February 28, 2020. Proprietary/OEM cranksets made for manufacturers using non-standard or asymmetrical bottom bracket types may not work with any combination of Stages Carbon and a Stages spindle. riders who prioritize all day function over anything else. Learn more GIVE GRAVEL SOME TRAVEL. The WT ring is compatible with 9-, 10-, and 11-speed chains. Glad you liked your Quarq SRAM XX1 Eagle DUB Power Meter. If you have the 3-bolt version, you will need to purchase new 8-bolt cranks, as listed on this page, along with your power meter. Power every ride. Loving the precision, simplicity and data I get from each workout session, definitely game changing! This coating interferes with SRAM battery contacts and is not compatible with SRAM power meters. And flashing red means charge it up. Manage your StagesBike SB20 in the Stages Cycling app. You cant go wrong. |, USD $545.00 I already have 2 years using that configuration with no problem (sram eagle cassette with kmc 12 speed chain and the shimano cranks and chainring) Force etap axs; Gx eagle axs; Red etap axs; Rival 22/ rival 1; Rival etap axs; Sram force; Sram force axs 2023; Sram red; X01 eagle axs/x01 eagle; . Thanks to the addition of that big 52t cog, the GX Eagle gear range now on offer is a whopping 520 per cent (Shimanos is 510 per cent for reference). With an expanded, 520-percent gear range giving riders more ability to spin and recover on the burliest climbs, and an open design that aids in mud clearance, giving riders crisp shifting performance and longer component life. So you will need a SRAM X-SYNC 2 12-Speed Chainring as well. Hope that other hubbers learn from my mistake. Even after a couple of months, shifting continues to feel smooth and accurate, and it all comes in at a reasonable price. A light and stiff direct-mount chainring combined with an ultra-precise Quarq power meter elegantly integrated into the DUB axle collects.. 507.31 $ Regular price: 676.41 $ Details Add to . Chain. Even if you opt . Please let us know if there is anything else we can do! The power meter comes loaded with features such as MagicZero, whereby it automatically calibrates (offsets) as you ride. For an improved shopping experience, we recommend that you use the most recent versions of Google Chrome, Safari, or Firefox. Torque specifications for SRAM bicycle components, compiled in a single place for quick and easy reference. The only difference is on the drive side, so there's no difference in compatibility. Yes. See SRAM'sPrivacy Policyfor a detailed explanation of how your personal data is used. If the LED flashes red, its time to change the battery. It's a superb power meter in that it's accurate, extremely durable, measures the power from both legs, is reasonably priced and allows you to keep your current SRAM crankset. Tyres. Bought 5 between mates.. WRT local back up, Andrew completely non responsive. When life keeps you inside, ride virtually with power data. Copyright 2023 Stages Cycling. All thats needed to get riding is to mount the GX Eagle AXS drivetrain, pair and get out there. Dual-leg power measurement, accurate to +/- 1.5%, lightweight carbon crank arms, 200 hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). A watt is a basic unit of power equal to 1 joule per second. Enjoy the ultimate advantage of freedom and adventure that Eagle provides combined with the Quarq power meter platform that delivers on accuracy and r. Like others have said, you would need 8 bolt cranks to mount it so potentially need to upgrade depending on what model you have currently: sram.com Modified on: Mon, 5 Dec, 2022 at 7:58 AM. Dropping back into the 42t is a little more abrupt due to that sizeable jump, and the change in cadence feels a little more pronounced, but not unpleasantly so. The SRAM Eagle crankset versions follow the same compatibility as their non-Eagle equivalents. Thank you for leaving us a great review on your Quarq SRAM XX1 Eagle DUB Power Meter. or 4 payments of $141.25 with Info. Let us know if there is anything else we can do! Can I use a Quarq power meter? AXS unlocks an entirely new way to personalize your shifting experience all controlled via the AXS App. Component Newton meters (Nm) Inch pounds (in lbs) Integrated power meter/chainring (8 bolt) 4: 35: Road AXS 4-bolt Chainring (1x & 2x) 12: 106: SRAM GX Eagle AXS 12 Speed Rear Derailleur - Lunar. To use the Quarq, you'd need new crank arms (and a new BB if you go to DUB). Your entry point to the future. Manage your Stages Power meter in the Stages Cycling app. This applies to standard trail width cranks using BB30, PF30, PF92, and BSA bottom brackets. Tailored to the needs of drop bar riders, SRAM's new 1x-specific XPLR AXS wireless drivetrains target a gearing sweet spot. Tony Settel (verified owner) July 30, 2021. SRAM GX Eagle B-Bolt and Limit Screw Kit. Most modern mountain bikes are boost 52 mm. If round rings are your preference then there's no looking back. Eagle technology represents SRAM's newest 1x drivetrain technology. I'll be getting a pair of Favero Assioma's from them next. Farbe: schwarz glnzend, Iridescent Gewicht laut Hersteller: k.A. Most bikes come with SRAM 3-bolt cranksets, so its important you confirm which version you have. Sorry to hear about your negative experiences with the product, since BPT has taken over the brand we have and will continue to work hard on improving the power2max market share and offering customers the support the deserve. If the LED flashes red, its time to change the battery. AXS enabled for easy monitoring and firmware upgrades, Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride, Uses a common CR2032 battery that last for 200 riding hours and changes without tools. |, Bike_radar, br_components, br_groupsets, br_groupsetsAndDrivetrain, 3/a/b/d/3abdb55918b94ab76c11cb01aafce0e27c713318_MBK_387_tested.RussellBurton_20200604_2DX4222.jpg, Smooth, accurate shifting; super-easy bailout gear is great for really big days in the hills; whole package is a good price, Tend to spend more time in the 42t as the 52t does feel a little too easy; lacks the grunt needed to tackle more technical climbs, SRAM gets one up on Shimano with new 52-tooth Eagle cassette, Shimano Deore goes 12-speed with almost all of the tech of XTR, 1,906g Derailleur, cassette, chain, shifter, bottom bracket, cranks with chainring. Crankset: This power meter works with SRAM XX1 Eagle DUB 8-bolt cranksets. Reach out to your computer manufacturer for compatibility and display info. Syncros XR 1.5 Boost MTB Front Wheel . But they supplied on time and I get what I needed. The SRAM Battery Cover adds a stylish, protective cowling around your battery to ensure it stays safe and protected from impacts. You'll add a few grams with whatever mount you choose for the shifter. If you have the 3-bolt version, you will need to purchase new 8-bolt cranks, as listed on this page, along with your power meter. Quarq AXS Dzero XX1 Eagle DUB Power Meter Spider Vendor: SRAM. SRAM Eagle. While SRAMs AXS Web provides component data that other training tools cant, many indoor and outdoor training tools can help you train and interpret power meter metrics. In order for it to fit, you need to ensure you have a direct mount SRAM crankset or a modular SRAM crankset that uses the 3-bolt interface. If you do have a smart trainer, capture power data from your power meter rather than your trainer to keep your data consistent from outside to inside. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub. I keep coming back to them because they work flawlessly and are trouble free. If you don't already have a 4-bolt chainring, we offer several different MTB chainrings to choose from. Help us improve this article with your feedback. Thank you, Stacy really appreciate this! GX Eagle AXS combines rugged durability with connected wireless technology that's made for the mountain. For users of Sram's GX Eagle groupset looking to dip their toe in the waters of electronic shifting, the AXS upgrade kit could well be the answer to your prayers! SRAM. GX Eagle; NX Eagle; SX Eagle; Code; DB; G2; Level; Productos. Installing the XX1 Eagle power meter crankset is as simple as normal cranks. Much appreciated! Ready for XC with a carbon cage, titanium hardware and a gear range of 520%! GX Eagle is your partner for all rides, all the time, all day. They seem to work fine, the chainring just clears the frame, and the chainring sits nicely in the middle of the cassette. If there is anything else we can do, please let us know! Free shipping within USA on all orders over $99.. International Orders. High-resolution Gen 3 Stages electronics with enhanced signal strength for reliable, consistent data capture and transfer; Integrated accelerometer for magnet-free cadence - easy setup and no need for extra sensors or magnets The new cassette is the biggest news here, which uses 123 stainless steel pins to hold the cogs (11 steel and one aluminium) together. Would you like to receive offers, updates and events from BikeRadar and its publisher Our Media Ltd (an Immediate Group Company)? The power meter comes loaded with features such as MagicZero, whereby it automatically calibrates (offsets) as you ride. We hope you will enjoy them. It features a 10-speed, 11-32 tooth gear range on the cassette and a two-speed chainring. Id post a pic if I could, but doesnt look like you are able to post pics in the reviews. Pros: Easy to install, works on any bike, can move from bike to bike, dont have to change crankset Cons: None. Another major change for Force 2023 comes at the chainset. The XX1 power meter runs for 200 hours on a single CR2032 battery and comes with a full 2-year warranty. Wow! A power meter measures power by tracking the amount of torque produced by your pedaling and multiplying that number by cadence, or how fast youre pedaling. The SRAM GX Eagle AXScontroller offers unparalleled customization: featuring the option to swap paddle shapes, the ability to assign different touchpoints using the SRAM AXS app, and the choice of either the AXS Discrete or tidyMatchMakerX clamps. Stages Cycling App Support. To shift gears, you no longer need to operate a lever, but simply press a button on the controller. Quarq Power Meter. You can upload: image, audio, video, document, spreadsheet, interactive, text, archive, code, other. 218 products SRAM GX Eagle 12-Speed Chain R 800.00 R 650.00 Save R 150.00 SRAM GX Eagle XG-1275 (10-50) Cassette R 5,000.00 R 3,990.00 Save R 1,010.00 SRAM NX Eagle PG-1230 12-Speed (11-50) Cassette Stem. SRAM GX Eagle Crankset - 170mm, 12-Speed, 32t, Direct Mount, DUB Spindle Interface, Lunar . By quickly disengaging the motor gearbox, the derailleur has freedom to move out of harm's way, before instantly returning to its position for a seamless experience for the rider. We are here if there is anything else we can do! The ultimate spider-based power meter for your SRAM XX1 crankset! The cover is also compatible with our existing XX1 and X01 Eagle, The AXS App is the built-in componentry software that makes it possible to connect, personalize AXS enabled components from SRAM, RockShox, Zipp and. This crankset also requires the use of a SRAM DUB bottom bracket. The customer service here is amazing, I managed to order the wrong thing twice and Josh contacted me before shipping and fixed my mistake on their end. With an expanded, 520-percent gear range giving riders more ability to spin and recover on the burliest climbs, Does your derailleur protect itself? Please note, it requires the use of a SRAM DUB bottom bracket. At 290g, the new GX Eagle rear mech weighs just 14g more than the X01 equivalent but costs almost half as much. No need for a new axle either. With approximately 200 hours of battery life from a single coin cell battery, youll get lots of ride time from your unit. Checking battery life is easy: green light means its at or close to full charge. The SRAM Battery Cover adds a stylish, protective cowling around your battery to ensure it stays safe and protected from impacts. The GX AXS shifter, with coin cell battery installed, is just 68g. The new 10-52 tooth GX Eagle cassette for riders who prioritize all day function over anything else. GX Eagle AXS does. The NX group is about $70 cheaper, but due to the fact that it has an 11-tooth cog on the high-endfor use on . We reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. The 32-tooth chainring itself features SRAM's X-SYNC 2, which utilizes teeth shaping to maximize chain retention under aggressive shifting and root gardens that have no favorable line options. The SRAM Eagle crankset versions follow the same compatibility as their non-Eagle equivalents. The result is a cassette that is lightweight and strong. Brakes. TECH TIP: Only use lithium batteries, not alkaline, in your spindle-based power meter. This ensures consistent operation, maximum battery life, and prevents corrosion. We are here if there is anything else we can help you with! First, lets connect to the SRAM AXS App, add the power meter to your bike profile, and check your power meters firmware, so its ready for setup calibration. Learn more Your power meter can make a standard indoor trainer smart by allowing you to capture power and cadence data and then transmit it to your cycling computer. Just a great power meter And the best service you can get:Powermetercity! My partner and I installed these on our Epics. GEAR SHIFT MTB SRAM XX1 EAGLE TRIGGER 12SP BLACK -R 6000. The power2max NGeco SRAM MTB Power Meter is one of our go to power meters for MTB. To work properly, this page requires JavaScript to be enabled or to use the most recent versions of Google Chrome, Safari, or Firefox. Looks like you are enjoying your new Quarq SRAM XX1 Eagle DUB Power Meter, Tony! SRAM Eagle XX1 Power Meter Quarq 2.67K subscribers Subscribe 104 29K views 3 years ago Get started with the SRAM Eagle XX1 power meter. Shifters. If you believe your bike may come with an OEM-specific crankset variant, please open up a submit ticket and provide us with any information regarding your bike spec to see if there is a solution. Power2Max SRAm 104 BCD - pricing from R11 995.00. no need to change BB's or cranks. I'm trying to figure out what my options are for a power meter on the mountain bike But it's a bit confusing to say the least. The cover is also compatible with our existing XX1 and X01 EagleAXSderailleurs. This one's still a 10-52 with 520% range, but the largest cogs are now 32/38/44/52 (versus the current 32/36/42/52). Got the Quarq powermeter with crank and chainringinstallation was very easy, got it installed in less than an hour at home. JavaScript seems to be disabled in your browser. The larger thumb paddle is light enough to operate quickly and the smaller release trigger continues to offer that reassuring snap as you drop down through the gears. Your RatingRatePerfectGoodAverageNot that badVery Poor, Attachment The maximum upload file size: 5 MB. Cory analyzed the tooth counts and found that the three largest cogs are different than the current 10-52 model. Though they will still bolt together with the equivalent left crank option, the crankset will be asymmetrical due to the mismatch in offset. Enjoy up to 200 hours of ride time in any weather condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh climates do not hold you back, then you need a product capable of rising to the occasion. Bought the Quarq SRAM XX1 Eagle DUB Power Meter for a Yeti SB100 and it works great! Smooth, accurate shifting and a wider range cassette is a real plus for big days in the saddle, GBP 495.00 RRP AXSwebisdesigned to analyze shifting, gear use, power zones and tire pressure. add in a 104bcd quarq Xsync 2 chainring and you are sorted, https://www.bicyclepower.co.za/product/power2max-ngeco-mtb-sram-single-power-meter-standard/, Thanks Diesel, much appreciated! Pre-Owned DT Swiss PR 1600 Disk Wheelset . Each touchpoint can upshift, downshift and operate the dropper. Carbon-Ti X-Ring EVO 1x 104 BCD MTB Chainring, CeramicSpeed BB92 Bottom Bracket for SRAM DUB MTB, Boost 52 mm, Super Boost 55 mm or Standard 49 mm, XX1 Eagle DUB 8-Bolt Crank Arms (if purchased), SRAM X-SYNC 2 12-Speed Chainrings (if purchased). Power-upgrade compatible with the following RED and Force eTap AXS cranksets: RED 1x: 36T-46T, Force 1x: 36T-46T, Force 2x: 33/46, 35/48. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Rob Weaver is BikeRadar's technical editor-in-chief. The new 10-52 tooth GX Eagle cassette for riders who prioritize all day function over anything else. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. RED D1 DUB Crank Set 48/35 Teeth black. For GXP, all GXP versions of Eagle cranksets should be compatible with the Stages Carbon GXP power meter (as they do not make a narrow q-factor version for Eagle). . SRAM Boost mountain bike cranksets follow the same compatibility rules as their non-boost equivalents. There . Bad product experience (it happens) but terrible support. Power is measured in watts. Stacy (verified owner) February 3, 2023. Cassette. 165mm, 170mm and 175mm crank lengths, DUB bottom bracket spindle. Track ride data and compete against yourself and friends. SRAM 12S. Calibration will ensure maximum accuracy, accounting for the subtle differences between bike frames and bottom brackets. Your browser does not support all of our websites functionality. Did you find it helpful? Stages Carbon for 30mm power meters can be used with SRAM DUB mountain bike cranksets using a compatible spindle (spindle G). We appreciate your business and are here if there is anything else we can do! I know 4iii are planning on releasing a "left side only" option for SRAM as well but exactly when this will happen is anybody's guess right now. The SRAM GX Eagle AXS upgrade kit provides you with everything you need to make your existing Eagle drivetrain wireless. Now that your firmware is current, we can perform the Setup Calibration in the app. Rondo Ruut Tubeless ready 622-21. For the best experience on our site, be sure to turn on Javascript in your browser. As far as this power meter goes, it was very easy to install alongside new cranks and an upgraded chainring, all ordered together from Powermeter City. No, Copyright Stages Cycling, LLC Power Meters and Computers; Gravel Gear and Kit; Groupsets and Components; Know's Notes; My Take; Join KNOW'S CLUB; Learn ABOUT US. esigned with SRAM's Eagle geometry, the GX Eagle chain features solid pin construction, Eagle. Most bikes come with SRAM 3-bolt cranksets, so its important you confirm which version you have. Good to hear, Kyle! To work properly, this page requires JavaScript to be enabled or to use the most recent versions of Google Chrome, Safari, or Firefox. Critics would argue it wanted the upper hand over Shimano, but SRAM says that by increasing the cog size theres even less chance that youd need to get off and walk your bike up a climb.