—$49.45

The SRAM GX Eagle left crank arm is for use with a GX Eagle crank. Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. 175mm crank arm Includes washers and self-extracting bolt SRAM GX Eagle Left Crank Arm Left Crank Arm UPC: 710845804588

by SRAM

—$75.93

Shimano Ultegra FC-R8000 Left Crank Arms Item Specifications Color Black Length 172.5 Spindle Interface Type Hollowtech II Shimano Ultegra Left Crank Arm Left Crank Arm UPC: 689228672536

by Shimano

—$53

The SRAM X5 crank arm is engineered for 2x and 3x shifting performance.Features SRAM's X-GLIDE technology Item Specifications Color Black Length 175 Spindle Interface Type SRAM/TruVativ GXP SRAM X5 Left Crank Arm Left Crank Arm UPC: 710845677656

by SRAM

—$49.45

The SRAM GX Eagle left crank arm is for use with a GX Eagle crank. Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. 170mm crank arm Includes washers and self-extracting bolt Item Specifications Color Black Length 170 SRAM GX Eagle Left Crank Arm Left Crank Arm UPC: 710845804571

by SRAM

—$46.64

Replacement left crank arms for Shimano Deore FC-M6000 cranks. Shimano Deore FC-M6000 Left Crank Arm Left Crank Arm UPC: 689228870000

by Shimano

—$56.33

SLX Left Crank Arm Item Specifications Color Black Length 175 Spindle Interface Type Hollowtech II Shimano SLX Left Crank Arm UPC: 689228226142

by Shimano

—$217.86

Accurate, reliable power measurement is practically a requirement these days, and the Apex AXS crankarm power meter upgrade is the easiest way to get precise power numbers. With the tech hidden inside the DUB spindle, it fits almost any bike while remaining stealthy. DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Right crank arm, bottom bracket, spider, and chainrings NOT included Item Specifications Color Black Length 170 Spindle Interface Type SRAM DUB SRAM Apex AXS Wide Left Crank Arm with Power Meter Spindle Assembly Left Crank Arm UPC: 710845886324

by SRAM

—$326

The X0 Eagle T-Type AXS Wide left crankarm with Power Meter spindle provides riders with accurate, live power data delivery housed in our most advanced aluminum crankset. The power meter technology is integrated through what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery with robustness in mind. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant Unique, groundbreaking design integrated with one of the lightest aluminum cranksets on the market +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 170 Spindle Interface Type SRAM DUB SRAM X0 Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886249

by SRAM

—$72.38

105 Left Crank ArmFor use with Shimano 105 FC-R700 cranksets Item Specifications Color Black Length 175 Spindle Interface Type Hollowtech II Shimano 105 Left Crank Arm UPC: 192790468143

by Shimano

—$49.77

105 Left Crank Arm Item Specifications Color Black Length 170 Shimano 105 Left Crank Arm UPC: 689228889903

by Shimano

—$64.50

Shimano XT Left Crank Arms Item Specifications Length 175 Shimano XT Left Crank Arm Left Crank Arm UPC: 689228677883

by Shimano

—$205.70

Accurate, reliable power measurement is practically a requirement these days, and the Apex AXS crankarm power meter upgrade is the easiest way to get precise power numbers. With the tech hidden inside the DUB spindle, it fits almost any bike while remaining stealthy. DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Right crank arm, bottom bracket, spider, and chainrings NOT included Item Specifications Color Black Length 175 Spindle Interface Type SRAM DUB SRAM Apex AXS Wide Left Crank Arm with Power Meter Spindle Assembly Left Crank Arm UPC: 710845886348

by SRAM

—$220

Accurate, reliable power measurement is practically a requirement these days, and the Apex AXS crankarm power meter upgrade is the easiest way to get precise power numbers. With the tech hidden inside the DUB spindle, it fits almost any bike while remaining stealthy. DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Right crank arm, bottom bracket, spider, and chainrings NOT included Item Specifications Color Black Length 172.5 Spindle Interface Type SRAM DUB SRAM Apex AXS Wide Left Crank Arm with Power Meter Spindle Assembly Left Crank Arm UPC: 710845886331

by SRAM

—$263

Power every ride with the SRAM Rival AXS Wide Power Meter Arm and Spindle Upgrade Kit. This power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and can be used to upgrade any eTap AXS bike to power. Wide chainline design to fit the biggest gravel tires DUB-PWR spindle-based unit measures left side power to calculate total watts An elegant integrated design Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket (sold separately) adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Simple and affordable power meter upgrade option Item Specifications Color Black Length 172.5 Spindle Interface Type SRAM DUB SRAM Rival AXS Wide Power Meter Left Arm and Spindle Left Crank Arm UPC: 710845865060

by SRAM

—$156.29

Shimano Dura-Ace Left Crank Arms Item Specifications Color Black/Silver Spindle Interface Type Hollowtech II Arm Length 172.5mm Shimano Dura-Ace Left Crank Arm Left Crank Arm UPC: 689228945524

by Shimano

—$76.44

Shimano Ultegra Left Crank Arms Item Specifications Color Dark Gray Spindle Interface Type Hollowtech II Arm Length 172.5mm Shimano Ultegra Left Crank Arm Left Crank Arm UPC: 689228403000

by Shimano

—$263

Power every ride with the SRAM Rival AXS Power Meter Arm and Spindle Upgrade Kit. This power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and can be used to upgrade any eTap AXS bike to power. DUB-PWR spindle-based unit measures left side power to calculate total watts An elegant integrated design Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket (sold separately) adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Simple and affordable power meter upgrade option Item Specifications Color Black Length 172.5 Spindle Interface Type SRAM DUB SRAM Rival AXS Power Meter Left Arm and Spindle Left Crank Arm UPC: 710845865015

by SRAM

—$263

Power every ride with the SRAM Rival AXS Power Meter Arm and Spindle Upgrade Kit. This power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and can be used to upgrade any eTap AXS bike to power. DUB-PWR spindle-based unit measures left side power to calculate total watts An elegant integrated design Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket (sold separately) adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Simple and affordable power meter upgrade option Item Specifications Color Black Length 170 Spindle Interface Type SRAM DUB SRAM Rival AXS Power Meter Left Arm and Spindle Left Crank Arm UPC: 710845865008

by SRAM

—$213.96

Accurate, reliable power measurement is practically a requirement these days, and the Apex AXS crankarm power meter upgrade is the easiest way to get precise power numbers. With the tech hidden inside the DUB spindle, it fits almost any bike while remaining stealthy. DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Right crank arm, bottom bracket, spider, and chainrings NOT included Item Specifications Color Black Length 165 Spindle Interface Type SRAM DUB SRAM Apex AXS Wide Left Crank Arm with Power Meter Spindle Assembly Left Crank Arm UPC: 710845886317

by SRAM

—$326

The X0 Eagle T-Type AXS Wide left crankarm with Power Meter spindle provides riders with accurate, live power data delivery housed in our most advanced aluminum crankset. The power meter technology is integrated through what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery with robustness in mind. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant Unique, groundbreaking design integrated with one of the lightest aluminum cranksets on the market +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 175 Spindle Interface Type SRAM DUB SRAM X0 Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886256

by SRAM

—$263

Power every ride with the SRAM Rival AXS Wide Power Meter Arm and Spindle Upgrade Kit. This power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and can be used to upgrade any eTap AXS bike to power. Wide chainline design to fit the biggest gravel tires DUB-PWR spindle-based unit measures left side power to calculate total watts An elegant integrated design Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket (sold separately) adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Simple and affordable power meter upgrade option Item Specifications Color Black Length 170 Spindle Interface Type SRAM DUB SRAM Rival AXS Wide Power Meter Left Arm and Spindle Left Crank Arm UPC: 710845865053

by SRAM

—$263

Power every ride with the SRAM Rival AXS Wide Power Meter Arm and Spindle Upgrade Kit. This power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and can be used to upgrade any eTap AXS bike to power. Wide chainline design to fit the biggest gravel tires DUB-PWR spindle-based unit measures left side power to calculate total watts An elegant integrated design Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket (sold separately) adds durability and simplicity Waterproof (IPX7 waterproof to 1 meter for 30 mins) Lightweight (less than 40g heavier than standard crankset) Simple and affordable power meter upgrade option Item Specifications Color Black Length 175 Spindle Interface Type SRAM DUB SRAM Rival AXS Wide Power Meter Left Arm and Spindle Left Crank Arm UPC: 710845865077

by SRAM

—$72.38

105 Left Crank ArmFor use with Shimano 105 FC-R7000 cranksets Item Specifications Color Black Length 170 Spindle Interface Type Hollowtech II Shimano 105 Left Crank Arm UPC: 192790468105

by Shimano

—$340

Power measurement is a crucial part of training, so SRAM made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster. Right crank arm, bottom bracket, spider, and chainrings NOT included DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Item Specifications Color Iridescent Gray Length 170 Spindle Interface Type SRAM DUB SRAM Force Wide Left Crank Arm and Power Meter Spindle Assembly D2 Left Crank Arm UPC: 710845886621

by SRAM

—$340

Power measurement is a crucial part of training, so SRAM made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster. Right crank arm, bottom bracket, spider, and chainrings NOT included DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Item Specifications Color Iridescent Gray Length 172.5 Spindle Interface Type SRAM DUB SRAM Force Wide Left Crank Arm and Power Meter Spindle Assembly D2 Left Crank Arm UPC: 710845886638

by SRAM

—$338.08

Power measurement is a crucial part of training, so SRAM made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster. Right crank arm, bottom bracket, spider, and chainrings NOT included DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Item Specifications Color Iridescent Gray Length 167.5 Spindle Interface Type SRAM DUB SRAM Force Wide Left Crank Arm and Power Meter Spindle Assembly D2 Left Crank Arm UPC: 710845886614

by SRAM

—$643

The XX Eagle T-Type AXS Wide left crankarm with Power Meter spindle utilizes SRAM's World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. We achieve this by utilizing what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 175 Spindle Interface Type SRAM DUB SRAM XX Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886287

by SRAM

—$643

The XX Eagle T-Type AXS Wide left crankarm with Power Meter spindle utilizes SRAM's World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. We achieve this by utilizing what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 170 Spindle Interface Type SRAM DUB SRAM XX Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886270

by SRAM

—$326

The X0 Eagle T-Type AXS Wide left crankarm with Power Meter spindle provides riders with accurate, live power data delivery housed in our most advanced aluminum crankset. The power meter technology is integrated through what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery with robustness in mind. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant Unique, groundbreaking design integrated with one of the lightest aluminum cranksets on the market +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 165 Spindle Interface Type SRAM DUB SRAM X0 Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886232

by SRAM

—$340

Power measurement is a crucial part of training, so SRAM made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster. Right crank arm, bottom bracket, spider, and chainrings NOT included DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Item Specifications Color Iridescent Gray Length 175 Spindle Interface Type SRAM DUB SRAM Force Wide Left Crank Arm and Power Meter Spindle Assembly D2 Left Crank Arm UPC: 710845886645

by SRAM

—$340

Power measurement is a crucial part of training, so SRAM made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster. Right crank arm, bottom bracket, spider, and chainrings NOT included DUB-PWR spindle-based unit measures left side power to calculate total watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof (IPX7 waterproof to 1 meter for 30 minutes) DUB bottom bracket (Sold separately) adds durability and simplicity Item Specifications Color Iridescent Gray Length 165 Spindle Interface Type SRAM DUB SRAM Force Wide Left Crank Arm and Power Meter Spindle Assembly D2 Left Crank Arm UPC: 710845886607

by SRAM

—$643

The XX Eagle T-Type AXS Wide left crankarm with Power Meter spindle utilizes SRAM's World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. We achieve this by utilizing what SRAM calls "DUB-PWR" - a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration Compatible with RockShox Flight Attendant +/-3% accuracy means you'll always know your true watts output Long battery life provides 400+ hours of usage Waterproof (IPX7 waterproof to 1 meter for 30 minutes Right arm, Bottom bracket, Chainring and Spider NOT included Item Specifications Color Black Length 165 Spindle Interface Type SRAM DUB SRAM XX Eagle T-Type AXS Wide Left Crank Arm with Power Meter Spindle Left Crank Arm UPC: 710845886263

by SRAM