





FIFTY-FIFTY bike chain guide protector D-type Direct Mount chain guide position tensioner use 30-40T Chainring This Chain guide / tensioner is able to use for 30-40T Chainring ISCG 05Direct Mount Primary Uses: XC, Trail, 4X, Dirt Jump Material: 6061 T6 Thickness: 5mm Total Weight: 59g This product uses imported high tenacity nylon with non-standard bearing one injection molding, guide wheels ensure durability and reduce noise maximum extent. Currently the guide wheel in noise control has been higher than the market similar products.









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