Im going to ask them for one as it should be in the kit as standard or come as part of the 9lb pulley upgrade.
The contact patch for the belt is already small with the standard pulley and when you drop to the 9lb the contact patch lessens again. With that pulley installed it would allow for a much greater contact area thus reducing slip.
If i cant get one I'll machine one and press in a bearing and make a stand off.
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