135mm is standard spacing for tha back end of mtb's.
Its most probably likely your frame is just a little bent, try and put a 135 wheel in.
It will almost defeinetely go in just fine, but in the case that it doesnt, you can either try harder! or play with different sizes of washer/locknuts on your axles to ge tthe right size. If you are going with a solid axle, there is LOTS of room for adjustability.
135mm is standard spacing for tha back end of mtb's.
Its most probably likely your frame is just a little bent, try and put a 135 wheel in.
It will almost defeinetely go in just fine, but in the case that it doesnt, you can either try harder! or play with different sizes of washer/locknuts on your axles to ge tthe right size. If you are going with a solid axle, there is LOTS of room for adjustability.