When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero Spider represents the state of the art in power meter technology Meet the Quarq DZero Power Meter Spider—the DZero in spider form. Ready to pair with any Quarq Prime Power ready cranksets. - Bluetooth low energy technology and ANT+ wireless data transfer - 10K Temperature Compensation - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy within 1.5%
$399.99 - $579.99 $579.99 Up To 31% Savings
The Stages Power meter is built on to a non-drive FC-6800 crank arm specifically to pair with Shimano's Ultegra 6800 crank. The new Stages Power meter is slimmer, and up to 28% lower profile than the original meter. It's sleeker by way of a 17% reduction in frontal area, and they've also made it stronger. The new housing design increases the strength of the battery door and housing connection by 200% over the previous design. This Shimano Ultegra 6800 Stages Power meter is compatible with all Shimano Hollowtech II road drivetrains. - Accuracy: ± 2% - Power meter housing: new low profile design, with new door interface - Weight: Only adds 20g to base crank arm - Battery Life: 200+ hours (coin cell: CR2032) - Power range (Watts): 0 to 2500 - Cadence range (rpm): 20-220 - Water resistance rating: IPX7 - Frame Compatibility: Most frames, see fit guide in the Support section - Device Compatibility: ANT+, Bluetooth Smart Ready Software - Compatibility: Training Peaks, Strava, Garmin Training Center and others
Power to the people! Add the Pioneer Power meter to your existing Shimano crank. Pioneer's crankset-based power meters are simply some of the best power-monitoring systems on the planet, and the Upgrade Kit gives you the chance to add it to your existing crankset. At the heart of the Pioneer Power Meter System are two streamlined strain gauge monitors that can detect the slightest tangent and radial force direction as power is applied to the crank arms. This proprietary system detects the amount and the direction of force at 12 different points in each pedaling stroke for each leg, and allows you to fine tune your pedaling to find race-winning form. The Pioneer Power Meter Installation Kit comes with everything you need to package and send your existing Shimano crank to Pioneer for professional installation and calibration. - Compatible with Shimano Dura-Ace 9000 or Ultegra 6800 (Right Side Cranks Only) - Compatible Crank-arm Lengths: 165, 167.5, 170, 172.5, 175, 177.5, 180mm - Fully Integrated Strain Gauge for force measurement - Easy connectivity with ANT+ compatible Cycle Computers - HDPower Metrics when connected to Pioneer Cycle Computers - Lightweight Sensor Only 40 grams
Pioneer's Shimano Ultegra 6800 Power Meter is a revolutionary power meter that attaches stealthily to the left crankarm. The Ultegra 6800 left crank arm meter truly brings power to the people, and gives every rider power-based (also called watt-based) training performance, allowing you to fine-tune your pedaling to find race-winning form without breaking the bank. With advanced technology accurate to +/- 2%, ANT+ transmitting, active temperature compensation, and a mere 22 grams of weight, the Pioneer power meter is perfect for any cyclist. Additionally, installation is fast, simple, and clean with zero wires, magnets, or zip ties.
$196.00 - $207.00
Shimano XTR Left Crank Arms - Spindle Interface Type: Hollowtech II
- 8 bikes worth of adapters for Shimano 24mm and SRAM/Truvativ 24/22mm cranks to virtually any BB30 or Pressfit 30 frame, including mountain bikes, 2x10 systems, narrow-shell road bikes, road triples, etc. - 65 piece kit includes 4 each Shimano and SRAM adapter sets, plus extra spacers for chainline adjustment and a puller for removing adapters - Includes: (8) Shimano adapter (24mm ID, Shimano right or left; SRAM right only), (4) SRAM-left adapter (22mm ID, Shimano right or left; SRAM right only), (4) SRAM-right adapter (24mm ID, Shimano right or left; SRAM right only), (12) 0.7mm spacer - right (24mm ID, Shimano right or left; SRAM right only), (4) 1.8mm spacer - right (24mm ID, Shimano right or left; SRAM right only), (4) 2.5mm spacer - right (24mm ID, Shimano right or left; SRAM right only), (8) 1.0mm spacer - left (30mm ID, SRAM), (4) 2.5mm spacer - left (30mm ID, SRAM), (4) 5mm spacer - left (30mm ID, SRAM), (4) 10mm spacer - left (30mm ID, SRAM), (8) wave washer, (1) removal tool for pulling adapter out of BB
$49.99 - $199.99
- 42x30x7mm BB30 cartridge bearings housed in a press-fit, composite sleeve assembly for use with a BB386EVO or BB30 crankset in a BB386EVO or Press-Fit 30 (PF30) frame - Road sets include bearings, shields and a wavy washer - Mountain sets include bearings, shields and a spacer - Choose ceramic or stainless steel options
The newly redesigned All-Mountain Guide is the love child of two innovative and revered product lines, the 1x and XCg. Perfectly suited to the increasingly popular all-mountain segment, the All-Mountain Guide shares the freshly updated "TR" upper guide with the 1x, and adds MRP's patented integrated skid. The All-Mountain Guide is a great choice for 5-6" travel bikes when used with the latest tensioned rear derailleurs or on its own for shorter-travel trail bikes or hardtails that require bash protection. The contact-free, "upper-only" chain retention means the All-Mountain Guide will be virtually silent and completely drag-free when pedaling. The patented integrated skid will protect your crank and chainring and prevent the chain from ever contacting and potentially damaging your expensive frame. - Perfect for "clutched" 1x10 and 1x11 drivetrains, as well as those using chain-retaining rings (like our Wave Ring) - New nylon integrated skid protects chainrings and glides over rocks and obstacles - Tracked and grooved upper guide / backplate interface increases stiffness and eases installation - New co-molded "TR" upper guide with softer durometer interior for silent guidance - Available in 28-32t and 32-38t sizing - All install and adjustment operations possible with just a single 4mm HEX wrench. - Compatible with chainlines 49mm and wider
The new G4 picks up where the famous G3 left off — three consecutive appearances in the Dirt 100 issue, as well as countless World Cup and FMB podiums made it the most sought after full-featured guide on the market. Upgrades to the G4 include a new co-molded upper guide that utilizes a softer durometer TPU material on the interior walls and ceiling to silence drivetrain chatter. An improved material formula is utilized in the updated skid — making the best even better. - NEW Full-size, nylon upper guide with co-molded TPU material on the interior walls and ceiling that silences chain contact. - Integrated skid protects chainrings and glides over rocks and obstacles. - Includes standard pulley and G-slide slider block for quiet, dependable operation in muddy and dank conditions. - Available in "Mini" 32-36t and "Mega" 36-40t sizing - Compatible with chainlines 50mm and wider (55mm and wider on 83mm BB shells)
With the SXg, MRP delivers a guide without compromise and with no equal. No longer does the desire for protection and both upper and lower retention have to come at the expense of weight, efficiency, or the addition of moving parts - have your cake and eat it too. With the SXg covering all those bases, it’s the first guide in history that’s equally at home on anything from aggressive, short-travel bikes to Armageddon-ready Rampage rigs, and everywhere in-between. It’s a guide that refuses to be pigeon-holed, blurring the lines between typical industry definitions - a little country and a little rock, as they say. But, in this case, it’s a whole lotta rock. High-security chain retention and bulletproof chainring defense in an innovative, lightweight package with zero efficiency loss make the SXg ideal for a wide range of uses. Whippersnapper™ technology provides lower retention without moving parts or friction. The most advanced chainguide on the market, the SXg is the go-to of the top Rampage stuntmen, World Cup downhill pilots, and superhuman enduro tacticians. - Whippersnapper™ lower guide. - Full-size, nylon HD upper guide with co-molding. - Integrated SX skid provides safeguard to the chainring and glides over rocks and obstacles. - Nylon and TPU co-molding in the Whippersnapper™ provides durable protection from external blows and mutes internal contact with the chain. - Swingset™ hardware. - All installation and adjustment operations are possible with just a single 4mm HEX wrench. - Available in 30-34t and 34-38t sizing. - Alloy guides compatible with chainlines 49mm and wider, carbon 50mm and wider. Boost 148 compatible. - ISCG-05 only. - 149g (34-38t Alloy ISCG-05)
- Adjustable wearplate with chainring size indicators allow for 28-38T chainring capacity and easy adjustment - Gen 2 Stealth Idler pulley for smooth and quiet operation - 28/30, 32/34, 36/38t direct mount bashguard included - ISCG-05/BB models include ISCG-05 to BB adapter plate - 136g (30t), 159g (34t), 167g (38t) - Range: 28-38t
- Dual ring chainguide with 6061-T6 backplate and removable direct mount bashguard - Replaceable upper sharkfin wearplate prevents chain drop and allows front shifting - Dual-position lower roller provides chain tension and security - Includes both 32-36t and 36-40t direct-mount bashguards - ISCG-05 models are adjustable for 48-53mm chainlines - 149g - Range: 32-40t
Designed for enduro and trail riding, the AMg V2 Alloy chain guide features an upper guide for chain security and an integrated skid to protect the chainring and frame. - Compatible with 1x9, 1x10, and 1x11 drivetrains - Integrated nylon skid glides over rocks - Softer co-molded upper for quiet operation - Installs and adjusts with a single 4mm hex - Compatible with chainlines 49mm and wider - Tracked and grooved upper guide and backplate increases stiffness
Shimano Chainring Bolts - For use with M9000 chainrings
- XC or Cyclocross top guide, ideal for 1x drivetrains - ST and CX guides mount to 28.6, 31.8 and 34.9 seat tubes - E-Type guides fit Shimano E-Type and SRAM S3 frame mount standards
Designed to work seamlessly with the new wave of 2×10 drivetrains, the 2x utilizes MRP's patented integrated skid chainring protection (US Patents RE 42,436 / 8,235,849 Patents Pending) and features a dual pulley tensioning system. Notable on the 2x system is the absence of a crank-mounted bash guard or guide ring, instead it relies on the front derailleur and cutting-edge lower pulley assembly for complete chain retention. The integrated skid protects the chainrings from impacts without the added weight of a full bash ring. The dual pulley tensioning system ensures that the chain is properly tensioned and in the right position, keeping it on the chainring in the roughest conditions. The dual pulleys also reduce drag and noise compared to other designs, ensuring a better riding experience. Finally, the raised top fin profile prevents the chain from dropping to the BB shell. - Removable integrated skid protects chainrings and glides over rocks and obstacles - Dual pulley design provides precise chain engagement while reducing noise and drag - Raised top fin profile prevents the chain from dropping to the BB shell - BB mounted guides are only compatible with traditional, threaded BB systems
Spindle kit for Race Face CINCH cranks.
The G3 features MRP's patented integrated skid (US Patents RE 42,436 / 8,235,849 Patents Pending), which protects critical drivetrain components like the crank and chainring from damage and glides over rocks and obstacles. The skid and lower guide are combined into one solid structure. The skid and lower guide also feature our new attachment system, the Swingset. The Swingset system features a pivot at the forward skid mount that allows the skid to swing down for super easy crank and chainring installation. - Integrated skid protects chainrings and glides over rocks and obstacles - Includes standard pulley and new G-slide slider block for quiet, dependable operation in muddy and dank conditions. - Nylon upper guide - Quietring wrap on the upper guide's tail mitigates chain-slap - 34-38t sizing - Stamped steel backplate - All install and adjustment operations possible with just a single 4mm HEX wrench. - 236g (ISCG-05)
Shimano XT Left Crank Arm - Spindle Interface Type: Hollowtech II
- 104 BCD spider is compatible with all TRS+ and TRSr cranks - TRS+ single spider is not drilled for a granny ring - TRS+ double spider has holes for 64 BCD granny ring - Spiders require TRS lockring and removal tool (sold separately)
The 1x guide is the definitive cross-country chainguide. Used on the World Cup circuit and even in the 2012 London Olympics, the 1x has a proven track record of dependability and performance. The 1x is the perfect guide for riders and racers wanting a lightweight single-ring front drivetrain for cross-country use or riders wishing for more security out of their "narrow/wide" or XX1/X01 setups. Freshly updated for 2015 with the new co-molded "TR" upper guide - lighter and quieter, what's not to love? - Adds security to "narrow/wide" 1x10/11 and XX1/X01 drivetrains - Most models accommodate 26-38t chainrings - Tracked and grooved upper guide / backplate interface increases stiffness and eases installation - New co-molded "TR" upper guide with softer durometer interior for silent guidance - All install and adjustment operations possible with just a single 4mm HEX wrench. - BB mounted guides are only compatible with traditional, threaded BB systems
The North Shore Billet 1×11 Spider replaces the removable chain ring spider so that you can run a SRAM XX1 chain ring on Truvativ X0, X01, X1, X9, GX, S2210, and S1400 cranks. There are no mounting holes for the granny ring and the single ring’s position is designed to give a better chain line throughout the entire gear range. The chain ring tabs accept an optional rock ring for All Mountain or Enduro riding.
The North Shore Billet 2×10 Spider replaces the stock chainring spider so that you can run smaller chainrings on SRAM XX1, X01, X1, X0, X9, X7, and GX cranks using GXP bottom brackets. With the NSB 2×10 Spider you can run a more traditional 22/32T or 24/34T combination. The NSB 2×10 Spider is designed to use any standard 64 / 104 BCD 9 speed chainring. The distance between the rings and the distance from the centre of the bottom bracket is the same as the 120 BCD spider so the set up is simple and the shifting is quick!
Surly offers you spiders for their Mr. Whirly Cranks in a variety of Bolt Circle Diameters (BCDs) so you can run nearly any chainring combination you want. Be sure to check chainring/frame compatibility for your intended setup.
Race Face direct-mount chainring spider for Cinch ranksets.
Choose the Hope Crankset Spider you need for the chainring combination you want. - Interchangeable and replaceable on Hope Cranksets - Single chainring model for use with a single 104BCD chainring with or without bashguard - Double chainring model for use with a 64/104BCD double chainring setup - Allows installation of bashguard on outer position
TruVativ's Stylo All Mountain Guard is all-mountain chainring protection with style. This 4mm thick aluminum guide is 4 bolt, 104 BCD compatible.
All-City's lightweight Cross Wizard chainring guard is the perfect addition to a single ring or singlespeed setup. While not a full-on mountain bike ‘bash guard’ these are just the thing to keep your chain on and your teeth intact. Named after the one and only Cross Wizard! (You have to say it like that, with the exclamation at the end.) These are available in 110mm and 130mm bolt circle diameters for all your ‘crossy needs. - Material: CNC machined 6061-T6 aluminum
$39.99 - $44.99
Aluminum bash guard.
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