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crank

flubberghusted's picture

Shimano cranksets - which one? M770 or M771

Is there a difference between the two?
M771's are on special at the mo so more inclined to get those.

Compatibility wise, currently running the following so just curious as to whether it will run on it.

Shift Levers SRAM X-9 Trigger
Front Derailleur Shimano LX
Rear Derailleur SRAM X.9
Crankset SRAM GXP1, 22/32/44 teeth
Bottom Bracket SRAM GXP 68mm
Rear Cogs Shimano XT M770 9 Speed Cassette
Chain Shimano Dura-Ace/XTR 7701 9 Speed Chain

chrischris's picture

XTR crank help

A slight crank noise developed today during a spin, & I've found out what it was. The crank has about 1mm of slop moving left to right. (See photo below)

The arrow indicates where the 1mm slop is occurring. These cranks are slightly different to others I've had in the past. Any advice as to how to retighten them?

CharlieB's picture

Home mechanic help

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In the vain effort of trying to improve my mechanical skills I am slowly rebuilding a bike. In this I have just put in a new set of XT cranks and bottom bracket – seemed easy enough. Although I did have to tap the crank with a wooden mallet to pop it through the BB. Not a big wack, just a gentle tap – is this usual? It seemed to be just getting the end to clear through – this was also the case when not on the bike so I am happy things are square.

Rob's picture

How to remove seized square taper cranks

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I was really rather worried about this.

This is a crank arm and the BB from Pratiwi's bike. Although I managed to get the drive side crank off, the threads in this (non-drive) got completely stripped when trying to remove it - with a crank arm remover of course - but the arm itself is made of very soft metal and they easily strip Sad

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