Standard Handlebar size is 31.8 mm - if you have a smaller handlebar diameter then you will require a handlebar shim
The information given below is a shorter version of our comprehensive Redshift Sports shockstop stem review and FAQ
The stem has been designed to reduce vibration through a clever elastomer suspension system. As with all suspension systems, a bike fit may be the best solution to your ailments, but this suspension stem is your best mechanical solution. The Shockstop aims to improve:
ShockStop is designed from the ground up specifically for road and hybrid bikes - the suspension travel, weight, feel, and aesthetics are finely tuned to perfectly complement modern bikes and the roads we ride on.
The ShockStop dramatically improves the quality of your ride, without compromising steering responsiveness or detracting from the aesthetic of the bike. The subtle pivot design allows the front end of the bike to move up and down over bumps in the road while your hands follow a smoother path, cushioned by the elastomers inside the stem.
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The ShockStop Stem has been invented by Redshift Sports, Philadelphia, PA, USA following a successful KickStarter campaign in 2015. This followed the previous success of the Aero system (back in 2013) and the company has continued to expand and develop its product range.
Here's a little installation video that we threw together to help you install the shockstop stem