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MKS Chain Tensioners (Mikashima CA-NJS)
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Details
Chain Tensioners (also known as chain tugs), for 120mm rear spaced track frames.
These help set and hold the chain tension on your track frame, and to avoid rear wheel axle slippage, and are used by Keirin pro track racers in Japan.
-NJS approved.
-Cannot be used with 110mm spaced frames or frames with track ends thicker than 5mm such as aluminum and carbon frames.
These help set and hold the chain tension on your track frame, and to avoid rear wheel axle slippage, and are used by Keirin pro track racers in Japan.
-NJS approved.
-Cannot be used with 110mm spaced frames or frames with track ends thicker than 5mm such as aluminum and carbon frames.