The bike frame I'm buying says that It is Pressfit BB86.5 (road), What are my options in terms of bottom brackets and cranks? I would like to get a BB30 Sram Force crank is this possible?
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2 Answers
Pressfit 86.5 is really PF86.
As outlined in this BikeRadar guide (or this from Problem Solvers), your crank options are: "Standard 24mm external-type (Shimano Hollowtech II, SRAM/Truvativ GXP, Campagnolo Ultra-Torque, FSA MegaExo, Race Face X-Type, etc), BB386 EVO".
The bottom bracket options are corresponding BB86 sized options.
You can't use a BB30 crankset/BB.
As Batman has said already and linked to the guide the pf86 is a 24mm axle standard.
You can buy flanged bearings that allow you to run some 30mm cranks with a spindle length longer than 104mm (I don't know if this means you could run your SRAM crank with a 104mm spindle!). Wheels Mfgmake them.
I guess it's about whether you want to run a non-standard system. I've always believed (with no evidence to back this up at all) that you lose reliability and longevity once off the standard.
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Rotor's PF4130 is a similar part, but the spindle length is the key part which most BB30 cranksets won't have.– BatmanCommented Oct 18, 2016 at 19:15