Truative cranks on a shimano BB not right ?.

[dyna-ti]

Current build has hit another snag.

I'm using a shimano saint m800 bb, and was going to use rotor rex cranks that appear to fit ok, but decided to use X9 and when all assembled im left with a gap on the non drive side of about 10mm. I've only done this hand tight, but i cant see it moving that far onto the spindle, maybe 4mm but not 10 :?

As its a GXP system the axle basically just slides through and if any gap on the drive side will i suppose move about.
Is there no spacer that can go between the outside of the bb and the inside of the arm, or is that just compounding matters.

I've a GXP bb sitting here new, but arent they all compatible ? Or will fitting the GXP with the x9 solve the spacing issue.
The BB is 68mm standard. Cranks are new X9

 

[scottproonly]

Re:

They are different. Shimano are 24mm both sides whereas crank spindles from the sram family are 24mm ds and 22mm nds. You can buy a converting spacer off ebay.
Hope this helps
Kes

 

[scottproonly]

Re:

Type "shimano to sram adapter shim" and a few pop up on the bay
Sorry I can't do links on my phone.
Kes

 

[dyna-ti]

Thats excellent, ill check out my options

 

[ishaw]

Re:

Gxp is slightly different to shimano. As mentioned, adapters are needed that press in to the bearings. Plenty around on Ebay and usually pinkbike.

 

[dyna-ti]

Got one at the lbs today and its fitted and thus far all appears well with the world

Ill fit the chain, and hopefully all will do as it should.