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Description
Once installed this tiny plastic device adds a few grams but will in 99% of cases prevent over shifting and the frustration of a chain getting un-shipped during the process of changing from big chainring to small.
Indispensable for use in events such as the Tour of Flanders Randonnee where your bike gets shaken to bits and shipping a chain is common. Once fitted this device will never need adjustment and really is worth its weight in gold. Fit one Today!
Note: Some modern frames preclude the installation of this device due to bottom bracket bulk. In these instances, an alternative device from Rotor can be mounted to frames that use a braze-on front mech.
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Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
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— The Sigma Sports Team