225-3M-15 Belt belt
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225-3M-15 Belt belt

The belts are the normal industrial grade seen on many websites when you search (Gates 225-3M-15 Belt). They are a bit thinner than the special boosted ones, but quite a bit less expensive as well. Compatible with:
Kegel Wheel Hack
Evolve GT 83mm Wheels Hack

Price
$ 6.35