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Chainrings

$13.00 - $32.99
Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains.
$17.00 - $58.00
64BCD chainring for MTB cranksets
$17.49
- Shimano, 22T, 9 sp, BCD 64mm, 4-Bolt, Deore FC-M590, Inner Chainring, For 22/32/44, Steel, Black, Y1LD22000
$19.99
- Chainrings for SLX FC-M675 double cranks - Please refer to compatibility: 38T chainrings are available for 24T or 26T inner chainring and are not cross-compatible.
$19.99
- Shimano, Tiagra FC-4703, Chainring, Teeth: 30, Speed: 10, BCD: 74, Bolts: 4, Inner, Steel, Grey, Y1RD30000
$21.00
- DualHex kits: 5mm-broach bolts with 6mm-broach nuts for secure 2-wrench assembly - Triple kit can be used on 5-arm or 4-arm mountain/road cranks (includes 5 inner chainring bolts in addition to middle/outer bolt/nut set)
$23.00
Original equipment on SRAM and Truvativ cranks, they also work well with other drivetrains. - Material: Aluminum
$24.99
- Shimano, 32T, 9 sp, BCD 104mm, 4-Bolt, FC-M430-9, Middle Chainring, For MTB triple, Steel, Silver, Y1M098060
$26.49
Shimano Sora 9-Speed replacement chainrings gets your drivetrain operating smoothly again.
$26.99
The SRAM X-Sync STEEL 1x chainrings are the perfect replacement ring for the cost conscious with added durability of steel. The same SRAM X-SYNC technology at a price well below competitors’ imitation “narrow wide” rings. Best performing chainrings at the best price. - Drivetrain Speeds: 10 , 11 - Material: Steel - Ring Position/Type: Single - Weight: 110 grams (32t), 96 grams (30t),
$27.99 - $169.99
- Drivetrain Speeds: 11 - Chainring BCD: 110 Shimano Asymmetric - Material: Aluminum
$27.99
Shimano 105 FC-R7000 asymmetric 110 BCD chainrings for 2x11 drivetrains.
$28.99 - $134.99
Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.
$29.99
- Shimano, 38T, 8 sp, BCD 104mm, 4-Bolt, FC-M361, Middle Chainring, For 28/38/48, Steel, Black, Y1KN98040
$31.00 - $108.00
Replacement PowerGlide ring for 11 speed crankset. - Compatible with Asymmetrical Yaw front derailleurs - Bolt Circle Diameter (BCD): 110 BCD - Material: Aluminum
$31.00
Eagle Technology creates the smoothest, quietest, longest lasting and most efficient drivetrains SRAM has ever made. The radical new look and feel of the X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with Eagle chains to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. The complete Eagle system—crankset, chainring, chain, shifter, derailleur and cassette—is designed, tested, and proven to deliver the ultimate mountain bike drivetrain. Put simply, Eagle is capable of revolutionizing the ride for all riders on every kind of terrain. - Designed to be used with Eagle chain - Material: Steel
$31.99 - $259.99
Shimano Ultegra 6800 11-Speed Inner Chainrings - Material: Aluminum - Ring Position/Type: Inner
$32.99 - $284.99
Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.
$33.00
The X-SYNC 2 Bosch Direct Mount Chainring is built with the needs of E-MTB riders in mind, and incorporates the same X-SYNC 2 Eagle chain management technology found in every SRAM 1x drivetrain. - Sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain - Mud-clearing recesses - An integral component of the SRAM 1x drivetrain - Speeds: 12 - Material: Steel
$33.00
The EX1 drive train was designed specifically for the demands of electric-assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAM’s high end MTB parts provide high value, quiet operation and ease of service. - X-Sync (wide-narrow) tooth profiles for great chain management - Compatible with Bosch mid-drive E-bike systems - Material: Steel - Size/BCD: Direct mount - Recommended Group: EX1
$34.00 - $87.99
Original equipment on SRAM and Truvativ cranks, they also work well with other drivetrains. - 7000 series aluminum provides strength and durability - 130mm BCD
$34.00
- The oversized chainrings are CNC machined 7075 Aluminium blanks—2mm thicker than the competition. - Unparalleled stiffness is delivered by an increased Bolt Circle Diameter (BCD) and a two-piece insert-molded carbon composite construction. - The XX Crank geometry provides a narrow 156mm Q factor, efficient chainline, and beveled crank arms to maximize clearance. - X-Glide is the pure science in action common denominator that gives XX its unmatched shifting performance. - 80mm BCD
$34.99
Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.
$35.00
Cold forged, high grade 4130 grade steel designed specifically for E-Bikes and longer wear - These e-rings are female-threaded. A regular male M8 CR bolt threads directly into this threaded e-ring for motor clearance. Mount with the logos facing outward - Narrow Wide tooth profile for better chain retention - Works with 1x10/11/12sp Shimano, KMC, and SRAM Eagle, Flat and T-type chains - Must use a ‘clutch’ type rear derailleur. Ex: Shimano Shadow or SRAM Type2 - Shimano compatible with both mechanical and Di2 Shimano 10/11/12sp. SRAM compatible with both mechanical and wireless SRAM 10/11/12sp - In rough terrain, or just for pure security, the use of an upper guide recommended - Unauthorized online sales are prohibited by the manufacturer
$35.00
SRAM's road chainrings are stamped from 7075 aluminum for low weight and excellent strength. The teeth are ramped for precision shifting, too.
$37.00 - $132.00
Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains. - 104mm BCD - Material: Aluminum
$41.00
- Trushift chainrings feature shift ramps and pins - Drivetrain compatibility: 8, 9, 10, 11 - 104mm BCD
$42.99
The stylish and affordable Nexus sprocket has a web spoke design CNC'd from 6061 aluminum, making an aesthetic yet highly functional lightweight sprocket! - Material: 6061 aluminum - Thickness: 5mm - Spindle Bore: 15/16" (24mm) - Weight: 1.8oz
$45.00
A tight and consistent 13-tooth gap between chainrings delivers accurate and dependable shifting and is the core of our X-Range gearing. Our smaller chainrings paired with wide-range, 10t-start cassettes provide more efficiency and more time in the big ring. It's modern gearing for today's riders. - Crisp and accurate front shifts - Durable finish - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear
$49.99
Shimano Dura-Ace 9000 11-Speed Chainrings. - Chainring BCD: 110 Shimano Asymmetric - Color: Black - Defined Color: Black - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner
$49.99
The logic was designed with our team riders who needed a simple, good looking but strong and dent-resistant sprocket for all kinds of riding. Available in 25T and 28T with adaptors to fit any crank on the market, many of the team can be found riding the logic sprocket this season. MATERIAL: - Full CNC 6061-T6 alloy THICKNESS: - 6.35mm SIZES: - 25T, 28T SPECIAL FEATURES: - Team designed sprocket - Adaptors to fit 19/22/24mm cranks - Thicker spokes for increased strength
$50.00
- Stock for 07-08 Record and Chorus 10-speed compact and standard cranksets - Ultra-Drive ESP alloy chainrings with anti-friction treatment and ramps/pins - *Campagnolo compact rings are Ultra-Torque specific BCD - Color: Grey
$54.99
A sturdy 4-spoke design and a solid 6mm thick 6061-T6 alloy construction make the 4 Star Sprocket a real killer. - Material: Full CNC 6061-T6 alloy - Thickness: 6.35mm - Special Features: Bolt drive version only, made to fit directly on to a 24mm crank spindle, includes adaptors for 19mm and 22mm spindles - Weight: 25t: 77g (2.71oz : 0.16lbs)
$56.99
The Shimano R9100 series crankset achieves the ultimate in optimal power transfer. It does this through a reinforced chainring on its unique asymmetrical four-arm spider construction. - Chainring BCD: 110 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner
$59.99 - $69.99
- Wide tooth profiling prevents chain drop without a chainguide - Compatible with 9/10/11 speed chains, allowing a 1x setup on most drivetrains - Constructed in Canada from 7075 aluminum
$59.99
FSA Pro Road Chainrings deliver flawless shifting for any road drivetrain. - Precision CNC machined AL7075/T6 alloy
$59.99
FSA Pro Road Chainrings deliver flawless shifting for any road drivetrain. - Precision CNC machined AL7075/T6 alloy
$61.00
Engingeered to interface with Bosch motor systems, SRAM drivetrain engineers optimized this ring to combat the high-torque, high-wear situations e-bike riders face. The aggressive T-Type tooth design provides better chain retention for a smoother, more efficient pedal feel with a focus on long wear-life. - Steel (36T,38T). - AeroGuard Compatible that fufills EN 15194:2017 standard - Backwards compatible with other Eagle Technology.
$61.00
Rugged durability comes naturally to the Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. Available in three different tooth counts, there is ample room to refine and customize your bike’s feel. - 8 Bolt direct mount - 30-38T range and +3mm offset variants - Compatible with T-Type chains
$61.00
Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Boost 3mm offset
$61.00 - $155.00
Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Non-Boost 6mm offset
$61.00
The radical new look and feel of SRAM's X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with the Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise and wear. - Can be used with Eagle 12 speed or SRAM 11 speed chains - Direct mount rings with 3mm offset fit Boost geometry Eagle cranks; direct mount rings with 6mm offset fit traditional geometry - Eagle cranks and GXP spindle XX1, X01, X0, X1 and X9 cranks
$63.00 - $219.00
- X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - New tooth profiles for improved wear - More durable finish - 94mm BCD
$63.00
- X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Specially designed tooth profiles for improved wear - More durable finish - Bolt Circle Diameter (BCD): 107 BCD - Speeds: 12 - Material: Aluminum
$64.00
Replace worn out chainrings or change out gearing with SRAM's RED X-Glide Chainrings. These solid rings are crafted from aluminum using SRAM's X-Glide tooth profiles for quick, responsive shifting. If you have a SRAM RED 22 compact crank, these are the rings for you.
$64.99 - $66.99
The perfect option for replacing worn out chainrings on your 10-speed mountain drivetrain.
$65.99
Shimano XT M770 10-Speed Chainring - XT FC-M770 and FC-M780 10-Speed cranks use the same middle chainring - Chainring BCD: 104 - Color: Black/Silver - Drivetrain Speeds: 10 - Material: Steel/Carbon - Ring Position/Type: Middle - Tooth Count: 32
$69.99
Note: This is a CAMO Chainring ONLY. A CAMO Spider is required to complete this system. The CAMO chainring system was created by the Wolf Tooth engineers for Chainline And Material Optimization on direct mount style Chainrings. The key advantages include: - Perfect chainline - for wear and shifting precision - Optimal material usage - for weight, stiffness, and wear - Price - for less expensive replacement chainrings - Swapping - Very fast chainring change out with 5 small bolts and no nuts. - Availability - Wolf Tooth is the one-stop-shop for your direct mount needs...round or oval, stainless or aluminum, and no matter the crankset. - Bling!! - spider colors and bolt colors add a little flash to your sweet ride. - Wolf Tooth's patented Drop-Stop® wide/narrow tooth profile for the ultimate chain retention and mud shedding ability Compatibility: - This is a chainring for the Wolf Tooth CAMO spiders. It is NOT compatible with any other chainring mountings. - The CAMO spiders come with Stainless Steel Bolts. - For 1x9, 1x10, ,1x11 and 1x12 drivetrains (including SRAM Eagle) If using a 9-speed drivetrain use a 10-speed chain (shifts and works well on a 9-speed drivetrain and fits the ring tighter for better chain retention). - Chainline - varies by which spider you choose - Available in multiple tooth profiles for optimal performance based on your chain type. Use Drop-Stop ST for use with Shimano 12-speed Hyperglide+ and 12spd KMC chains. Use Drop-Stop A for all 9, 10, and 11spd chains or 12spd SRAM Eagle, KMC, Connex or Wippermann chains. Drop-Stop B is optimized for SRAM 12 spd Transmission (T-type) and Road Flattop chains but is compatible with all chains that work with Drop-Stop A. DROP-STOP A - Wolf Tooth Drop-Stop A is the original patented wide/narrow chainring compatible with multiple drivetrain brands including 9, 10, 11, and 12spd SRAM Eagle, KMC, Wippermann, etc. - NOT compatible with 12spd SRAM Transmission (T-Type) Flattop, 12spd Shimano HG+, or 12spd Campy DROP-STOP B - Compatible 9, 10, 11, and 12spd SRAM Eagle, 12spd SRAM Transmission (T-type) Flattop, 12spd Campy, 12spd KMC - Not compatible with 12spd Shimano HG+ chains DROP-STOP ST - Compatible with 12spd Shimano Hyperglide+ chain and 12spd KMC chain only - Symmetric Trapezoidal (ST) tooth shape is optimized for Shimano HG+ chain Recommended - A clutch style rear derailleur will be best for chain security. - If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck. Tech Specs: - Weight: 28t/ 25g | 30t/ 35g | 32t/41g | 34t/48g | 36t/57g | 38t/66g - Material: 7075-T6 aluminum - Made in USA
$72.99
The Patrol sprocket is based on the classic racing sprockets of the past. This one uses a high-quality full CNC construction and offset teeth for a perfect chain line. This thing was designed so you could crank it fast, so bolt one onto your bike and see just how fast you go. - Full CNC 6061-T6 alloy - Thickness: 6.35mm - Bolt drive version only - Made to fit directly on to a 24mm crank spindle, includes adaptors for 19mm and 22mm spindles
$74.99
The super-tough Rock Sprocket is built to last. Made from full CNC'd, 6.5mm thick 7075-T6 aluminum for superior strength and 7 half-depth reliefs for a clean look and weight reduction. Featuring offset 1/8" teeth provide improved chain alignment on all setups. - Type: Bolt Drive - Material: 7075-T6 Aluminium - Thickness: 6.5mm - Compatibility: 19mm, 22mm, and 24mm Spindles - Weight: 3.5oz (25T)
$75.00
Narrow wide direct mount chainrings for SRAM cranks with our redesigned tooth for the Shimano HG12 12-speed drivetrains. These chainrings are designed to give the optimum chain line, which gives the smoothest shifting across the whole cassette. Fits: - SRAM S1400 - S2200 - S2210 - X9, X0, and X01 - X1 and XX1 - GX and NX Cranksets Specifications: - Chainrings are compatible with Shimano HG12 12-speed chains such as: - XTR CN-M9100 - XT CN-M8100 - SLX CN-M7100 - Machined from solid 7075 T6 Aluminum - Anodized Black with Laser Etched Graphics Chainline: Boost: 52mm from the bottom bracket center Ring Offset: 3mm Weight: 28T – 80 g 30T – 90 g 32T – 105 g 34T – 115 g Precision CNC machined in Whistler, BC.
$77.00
Original equipment on SRAM and Truvativ cranks, they also work well with other drive trains. - 7000 series aluminum provides strength and durability
$79.99
Our Shimano M9100 Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought after Bi Directional narrow-wide tooth design provides excellent chain retention without a chain guide - Direct mount for Shimano M9100, M8100, and M7100 and perfect for 1x setups - Features a perfect 51mm to 55mm chainline, depending on axle length and spacer configuration - CNC'd in Canada from 7075 aluminum with laser-etched graphics
$80.00
The 1x 64/104 BCD variable tooth chainrings are compatible with all 9, 10, 11, SRAM and Shimano drivetrains, and 12-speed SRAM drivetrains. Specifications: - 104mm Bolt Diameter Circle (104 BCD) - Bottom Bracket Types: BB30 / GXP / Boost - Chainline: This varies with your crankset - 28T: Fits any standard 64/104BCD cranks. The 28T chainring uses 64mm BCD to mount onto the crank arm and is offset 5mm to a 49mm chain line. - 30T: ~50mm on a 2×10 mid-ring mounting position - 32T, 34T, 36T, 38T: ~52mm on a 2×10 mid-ring mounting position - Machined from solid 7075 T6 Aluminum - Anodized black with laser-etched graphics - Precision CNC machined in Whistler, BC. Weight: 28T – 45g 30T – 45g 32T – 40g 34T – 45g 36T – 55g 38T – 65g
$80.00
Narrow-wide direct mount chainrings for Race Face Cinch cranks. The chainring is designed to give the optimum chain line – in the middle of the cassette – providing the smoothest shifting across the cassette and a straighter chain when in the largest or smallest cog. The tooth profile of our narrow-wide chainrings maintains excellent wear for a durable product. Fits: Race Face cranksets: SixC, Next SL, Turbine Cinch, Atlas Cinch Compatible with all 9, 10, 11, & 12-speed SRAM drivetrains Compatible with all 9, 10, & 11-speed Shimano drivetrain Specifications: Bottom Bracket Types: Boost Machined from solid 7075 T6 Aluminum Anodized black with laser-etched graphics Chainline: 51mm from the bottom bracket center Ring Offsets: Boost: 3mm Weight: 28T – 75g 30T – 85g 32T – 95g 34T – 105g 36T – 115g Precision CNC Machined in Whistler, BC.
$80.00
Narrow-wide direct mount chainrings for Race Face Cinch cranks. The chainring is designed to give the optimum chain line – in the middle of the cassette – providing the smoothest shifting across the cassette and a straighter chain when in the largest or smallest cog. The tooth profile of our narrow-wide chainrings maintains excellent wear for a durable product. Fits: - Race Face cranksets: SixC, Next SL, Turbine Cinch, Atlas Cinch - Compatible with all 9, 10, 11, & 12-speed SRAM drivetrains - Compatible with all 9, 10, & 11-speed Shimano drivetrain Specifications: - Bottom Bracket Types: GXP - Machined from solid 7075 T6 Aluminum - Anodized black with laser-etched graphics Chainline: GXP: 48mm from the bottom bracket center Ring Offsets: GXP: 6mm Weight: 28T – 75g 30T – 85g 32T – 95g 34T – 105g 36T – 115g
$80.00
Narrow wide direct mount chainrings for Race Face Cinch direct mount cranks with our redesigned tooth for the Shimano HG12 12-speed drivetrains. The chainring is designed to give the optimum chain line. This gives the smoothest shifting across the cassette. Fits: - RaceFace Cranksets SixC - Next SL - Turbine Cinch - Atlas Cinch Specifications: - Chainrings are compatible with Shimano HG12 12-speed chains such as: - XTR CN-M9100 - XT CN-M8100 - SLX CN-M7100 - Machined from solid 7075 T6 Aluminum - Anodized Black with Laser Etched Graphics Chainline: Boost: 52mm from the bottom bracket center Ring Offset: 3mm Weight: 28T – 75 30T – 90 g 32T – 105 g 34T – 115 g
$80.00
Narrow wide direct mount chainrings for SRAM 11-speed and 12-speed Eagle cranks. The chainring is designed to give the optimum chain line – in the middle of the cassette. This gives the smoothest shifting across the cassette and the straightest chain in the largest or smallest cog. The tooth profile of our narrow-wide chainrings maintains excellent wear for a durable product. Fits: - SRAM S1400, S2200, S2210, X9, X0, X01, X1, XX1, GX Cranksets - Compatible with all 9, 10, 11, & 12-speed SRAM drivetrains - Compatible with all 9, 10, & 11-speed Shimano drivetrains Specifications: - Bottom Bracket Types: BB30 - Machined from solid 7075 T6 Aluminum - Anodized Black with Laser Etched Graphics Chainline: BB30 48mm from the bottom bracket center Ring Offsets: BB30: 0mm Weight: 26T – 50g 28T – 70g 30T – 80g 32T – 90g 34T – 100g
$80.00
SRAM 94 BCD narrow-wide chainrings for X01 and X1 cranks. Our NSB narrow-wide rings are CNC machined in Canada and feature a durable tooth profile that virtually eliminates chain drop. Note: The 28T – 94 BCD ring does not use the OE screws. The NSB 28T ring requires 4x M8 x 0.75 x 10mm long bolts. These are commonly available at your LBS and are the most commonly used bolt and nut combination to mount chainrings to cranks. All other sizes, 30T–36T, use the OE screws. Specifications: - 94mm Bolt Diameter Circle (4-bolt 94 BCD) - Bottom Bracket Types: BB30 & GXP - Chainline: 28T is 48mm / 30T–36T are 49.5mm - Machined from solid 7075 T6 Aluminum - Anodized Black with Laser Etched Graphics - Compatible with all 9, 10, 11, & 12-speed SRAM drivetrains - Compatible with all 9, 10, & 11-speed Shimano drivetrains Precision CNC Machined in Whistler, BC Weight: 28T – 40g 30T – 37g 32T – 42g 34T – 55g 36T – 65g
$80.00
Narrow-wide 1x12 chainrings for Shimano direct-mount cranks. These chainrings are designed to give the optimum chain line, providing the smoothest shifting across the whole cassette. Our Shimano direct mount chainrings are direct replacements for the OEM rings: SM-CRM75 SM-CRM85 SM-CRM95 The one-piece 7075 T6 Aluminum construction is lighter than the SM-CRM75 SM-CRM85 and has a similar weight to the SM-CRM95. Fits: - Shimano XTR FC M9100-1 M9120-1 - Shimano XT FC M8100-1 M8120-1 M3130-1 - Shimano SLX M7100-1 M7120-1 M7130-1 - Shimano Deore FC-M6100-1 FC-MT6120-1 FC-M6113-1 Specifications: - Chainrings are compatible with Shimano HG12 12-speed chains such as: - XTR CN-M9100 - XT CN-M8100 - SLX CN-M7100 - Machined from solid 7075 T6 Aluminum - Anodized Black with Laser Etched Graphics Chainline: Shimano Chainline is determined by crank spindle length and spacers. The chain lines with our chainrings on Shimano cranks are as follows. FC-M9100-1 = 52mm C.L. FC-M9120-1 = 52mm C.L. FC-M8100-1 = 52mm C.L. FC-M7100-1 = 52mm C.L. FC-M8120-1 = 55mm C.L. FC-M7120-1 = 55mm C.L. FC-M7130-1 = 56.5mm C.L. FC-M8130-1 = 56.5mm C.L. Ring Offset: 5mm – from crank mounting face to center of teeth Weight: 28T – 75 g 30T – 90 g 32T – 105 g 34T – 119g
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