Changing crank arms on Bosch CX

[RacerX]

Hello out there. It looks like I will need a special crank arm puller tool to change my crank arms on my Bosch CX for Orbea Wild. Is that correct?

 

[Ark]

what crank are they? a lot are self extracting

 

[RacerX]

what crank are they? a lot are self extracting

EThirteen espec+

 

[irie]

I used Park Tool CCP-44 to get the E*Thirteen cranks off our 2022 Trek Rail Bosch CX Gen 4 ISIS motors.

 

[Husky430]

I modified a cheap PITMAN-ARM puller for a car, just had to grind down the tips a bit so that they would slide between the crank arm and the motor, remove the retaining bolt and insert a small socket so that sat at the end of the crank shaft and presto, off they came with a few turns of the bolt. You can pick up one of these pretty much any cheap auto store or on line, this was advertised for $14 Australian, about 7 pounds UK or about $9 USA.

 

[irie]

View attachment 136274

I modified a cheap PITMAN-ARM puller for a car, just had to grind down the tips a bit so that they would slide between the crank arm and the motor, remove the retaining bolt and insert a small socket so that sat at the end of the crank shaft and presto, off they came with a few turns of the bolt. You can pick up one of these pretty much any cheap auto store or on line, this was advertised for $14 Australian, about 7 pounds UK or about $9 USA.

I have a crank puller for motorcycles, but instead of messing around with it decided to buy the Park Tool CCP-44.

 

[RacerX]

Cool. Now I know what to do. Thanks for everyones help