external type bb,s questions

[cyfa2809]

the torx type bit is for certain crank bolts i think

 

[WD Pro]

This is the type I have :

Mines not ice toolz but it is nigh on identical cheap off eBay ;-)

WD

 

[jetstream]

its recommended that the frame shell is re-faced prior to fitting the cups, so that the bearings sit squarely to the crack axle. Needs a special tool to do it, so its probably a job for the LBS

 

[WD Pro]

Yes, I had read this before I fitted and made the decision to do so (even though the BB shell was fully CNC’d). I was fortunate enough to have free access to the correct park tools It just cost me a burger and a pint in the pub after ;-)

WD

 

[cyfa2809]

that said, surely the cups will sit straight when done up to the correct torque?

 

[MAXTHEROTTI]

got a superstar spanner for mine in the end works well enough

but i would go for a cup type next time

 

[cyfa2809]

why so?

 

[MikeD]

WD, that "Torx" bit fits the plastic preload cap on non-XTR Shimano cranks. XTR has a preload ring behind the LH crank arm, all the others have a cap threaded into the end of the axle, a bit like a headset

 

[MAXTHEROTTI]

why so?

so you can use a torque wrench on it and it grips all the way round the bb cup too

 

[cyfa2809]

WD, that "Torx" bit fits the plastic preload cap on non-XTR Shimano cranks. XTR has a preload ring behind the LH crank arm, all the others have a cap threaded into the end of the axle, a bit like a headset

i thought it was for certain axle bolts?
i.e hollowtech cranks bolts - just one