The looking samples of 650b mountain bike rim have been finished already.

It is with 30mm for the outer width, 23mm for the inner width and 20mm depth. It is designed for tubeless compatible.

650b wheel

The weight for looking sample rim is around 330g. We put the rim together with 26er wider rim, 650b rim,29er wider rim. And take a picture as below.

650b rim

In next coming weeks, we will make testing samples to do spoke tension test, tyre pressure test, impact test and riding test.

The weight for 650b mtb rim will be around 370g/pcs for XC( cross country) version, and the stronger version will be around 400g for AM (all mountain) version.

This 650b bike rim will be ready to sell at the end of August. And we will also provide 650b wheel then.

We look forward to all customers to help to provide some suggestion on 27.5 bike rim test, and then we can finally manufacture good 650b rims & 650b wheel for all customers.

New Update : After long time testing and improving, 650b rims manufactured today are very good, with strong strength, We are ready to sell rims to customers and we are sure all customers will like the rim and like the strength. Please click here for purchase and we will do strength test for each rim before shipping, to make sure 650b rims are good for customers. Buy it now,click here: carbon MTB 650B rims