Shimano Hollowtec

iwilldoit

Hi All

If I swapped from a Octalink crankset to a a Hollowtec crankset, I take it that the front mech will still be ok?

Because the bearing cups are outboard does it space the chainrings further out so the front mech needs altering?

Is there anything else that I would have to take into consideration?

nicklouse

Chainline will be about the same. Yes you will need to reset the mech as normal.

And Hollowtec is actually the crank arm technology. They are hollow.

The Rookie

Hollowtech (as in hollow arms) or Hollowtech2 with external bearings and through axle......

iwilldoit

Hi

Hollowtech 2 external bearings, I was just thinking is the bearings are on the outside and not like my octalink internal cartridge it would space the triple rings a lot further out, but all new to mtb ing so haven't really a clue.

Is the hollowtech 2 better than octalink ?

jimothy78

iwilldoit wrote:

Hollowtech 2 external bearings, I was just thinking is the bearings are on the outside and not like my octalink internal cartridge it would space the triple rings a lot further out?

no - the Hollowtech 2 crankset is designed to take this into account, and it won't change the chainline by more than a couple of mm, so well within the scope of the derailleur, as long as you set it up properly afterwards.

Is the hollowtech 2 better than octalink ?

Define "better".

iwilldoit

I suppose last longer, or if there are any advantages what are they?

The Rookie

Hollowtech 2 is lighter and stiffer, the bearings probably last longer in an Octalink