![]() I was aware of surface undulations, but the Shockstop is so reactive that no impacts or vibrations made it to the saddle. The result was simply extraordinary comfort. With the knowledge that my tyre volume and pressure could cope with the sort of impacts I normally try to avoid, I steered towards the roughest patches of tarmac, potholes, ancient cobbles and uneven gravel. The ShockStop from Redshift is a bike stem that adds 20 mm of travel to the handlebars with the intention to improve the comfort and quality of the ride on rougher terrain. At the suggested preload setting, I immediately felt neutrally suspended and didn’t notice any negative effect on seated pedalling. The small unweighted saddle height increase needs a slight adjustment when mounting up for the first time. ![]() When weight is added to the post a link compresses the internal spring(s), creating user-adjustable sag, which Redshift recommends should be around 20 per cent of the 35mm total travel. Its two-bolt saddle clamp remains level atop a parallelogram linkage pivoting on dry-lube bushings. Turn the preload plug to the required position and fit the post. Numbers one to five are printed within its thread pitch and relate to rider weight and the spring(s). With the main spring fitted, my unit weighed 538g.Ī preload adjusting plug in the base of the seatpost tunes the suspension. Redshift suggests that riders up to 80kg should only use the main spring and those from 90kg to 110kg must install the inner spring as well. Its larger main spring is pre-installed and a smaller diameter inner spring is supplied – to be fitted within it if a stiffer spring rate is necessary. Unlike existing designs, the Shockstop uses springs to provide its suspension.
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