Bolt circle diameter for SRAM GX crank

superkenners

Hello,

I have a SRAM GX single ring crank (think it is the GX1000 148 boost). It currently has a 30t on it and wanted to switch to a 32t. However no idea what size the bolt circle diameter is. 94mm or 104mm. Don't seem to be able to find this info anywhere.

http://www.chainreactioncycles.com/sram ... prod109082

Anyone know which measurement is standard?

Thanks

The Rookie

Both are A standard.

Two easy ways to tell
1/ use a 12" rule and measure the distance between opposite bolt centres.
2/ a 30t is the very smallest you can fit on a 104mm, it leaves the bolt hole very lose to the teeth and the mounting bolts have to thread into it directly and not use a male and female combo.

superkenners

Ok, I think it's 94mm, the distance between the bolts is approx 67mm. Thanks.

poah

http://bfy.tw/Dbn6