How tight should a hollowtech crank be?

Re: Tightening a Hollowtech II crankset Only 12-14 Nm though. Roughly a third of the torque on the bottom bracket. A standard 5mm hex key (about 100mm long) should also give you a guide to the torque. (The force you can generate without marking or hurting your fingers).

How many spacers should I install on my bottom bracket?

A 68mm or 83mm bottom bracket shell needs two of the 2.5mm spacers on the drive (chainring) side and one 2.5mm spacer on the non-drive side.

What is Shimano Hollowtech 2 bottom bracket axle?

HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance.

What kind of crankarm is Shimano Hollowtech?

Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity.

Which is better Hollowtech or Hollowtech II axles?

The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer.

How big is the crankset in Hollowtech 2?

After studying all these problems thoroughly, we made the decision to adopt the 24mm diameter axle and bearings, which have the optimum balance, for the HOLLOWTECH II crankset.