Best lightweight crank/chainset?

[vqdriver]

i dunno what bbright is, but the etap crank is legit. if they make it for your bb, you can't go wrong with it.
sisl2 is sexy as helll, but yeah, very proprietary

[kramnnim]

Originally Posted by thoreau

Should have mentioned the frame is BBRight. I am leaning towards FSA because of price. Hologram would be great but they all seem to be exorbitantly expensive for what they are.

Hollowgram won’t work with BBRight...unless you use a wide spindle intended for mtb. (Which still might not work)

[seedster2]

How about THM Clavicula SE or M3? I have the clavicula SE in 175mm and they weighed right around 300 grams with spindle. Perhaps you can find a used set on ebay?

[macaroon]

Originally Posted by Mark McM

If I can hijack this thread -

I'm also consider a lightweight hill climb bike. This bike would be targeted for hill climb races, so lightweight is more important than ride quality, or even durability. I'm considering starting with a Trek Emonda SLR frame, which is very light (640 grams for a size 56cm). But it comes with Trek's proprietary BB90 bottom bracket, which uses 37mm OD bearings press fit directly into the BB shell. Many lightweight cranks use 30mm spindles, which just won't fit into the bearings this small, so crank choices are limited to cranks which use smaller spindles (such as Shimano's Hollowtech 24mm spindles, SRAM's GXP 24mm/22mm spindles, or Campagnolo's Ultra-Torque 25mm spindles).

So my question is: What are the lightest sub-compact cranks that will fit into a BB90 bottom bracket?

(I know that this is asking too much, but my ideal crank for this project would be a single or double chainring crank that could take a chainring as small as 22 teeth, and would have a narrow Q-factor of no greater than 150mm, and would weigh something in the region of 500 grams. This probably doesn't exist, however.)

SRAM Force with a direct mount chainring?

[thoreau]

Bringing this back up. Looking like the options are FSA K Force vs FSA SL-K Lght or SRAM Red. Any thoughts before I pull the trigger? Thanks!

[kramnnim]

Google "FSA pedal insert"

[thoreau]

Thank you. Decision made then.

[Tony]

Good choice!

[thoreau]

Lol. Looking like GXP should work with adapters. Honestly do not understand why there is still no universal standard for BB/Cranks. One would assume BB30 would fit BBRight but noooo.... Old man rant over.

[zzy]

One wouldn't assume that - BB30 was all about minimum q factor, while BBRight is all about stiffness. As long as one OEM thinks they know best, new BB standards will keep coming out.

I actually like the FSA K force Light 386EVO cranks. Lighter than DA with no proprietary nonsense. Never seen a pedal insert come loose, but don't doubt it either.