Does anyone know what crank tool to use for a Custom Shimano FC-M542, 15.5: 170mm on a Custom Shimano BB-91, OS, press-in bearing? The bike is actually a 2010 Specialized Stumpjumper HT.

I got the Park tools CCP-44 but its a couple of mm too big.

Help.

Thanks

do they look like that ?

i find it hard to believe any bb91 bike – i thought all 542s were hollowtech 2 axle as above. ?

Standard two-piece universal

You’ll need one of these in conjunction with an 8mm allen key for the end cap on the drive side, then a 5mm allen key to loosen the bolts. Once the non-drive side slides off, you can tap the axle to push the drive side out.

trail_rat: Yes they look like that, there is a thread inside about 18mm wide. The dust cap screws into it.

No puller needed then

Thats not a dust cap its the pree load

Remove the preload. Undo the 2 pinch bolts use a small screw driver go pivot up the plastic locator between the bolt and the arm should pull off. Use a rubber or hyde mallet to tap the axel thrhough to the drive side

Edit, what he ^^^ said..
Try to remember where any spacers are fitted as well.

As above no puller. The nod drive side crank should just slide off. The Drive side may need a little persuasion with a rubber mallet or block of wood and a hammer on the end of the axle if it has been in there a while.

You can usually unscrew the preload cap with a 5p

Excellent, will try that tonight. Anyone want to buy a crank puller, unused?

tip:

it can be easier to remove the pre-load cap if you undo the pinch-bolts first.