Burgtec Shimano Crank Bolt - Bullion Gold BF Giant a lightweight Durolite upper and

a lightweight Durolite upper and dual BOA® Li2 dials

Rear Derailleur SRAM Rival AXS

8 enhances mean power output during 10 maximal sprint efforts by 3% compared with 2:1 ratio (O'Brien et al)

winning the Maglia Rosa in the 2023 Giro d'Italia

the Amp 3D delivers the perfect balance of support and speed

Burgtec Shimano Crank Bolt - Bullion Gold BF Giant a lightweight Durolite upper andPre tension Bolt for Shimano Hollowtech II Cranks and Shimano E bike motors. Simplify things with an 8mm fitting and add a splash of your favourite anodised colour. Never worry about turning the garage upside down at midnight to find that little thingy to pre tension your cranks ever again. Remember this product needs minimal torque and do not exceed the manufacturers maximum recommended torque 0. 7 to 1. 5Nm. Mfr Claimed Weight TBC