These aluminium levers were originally intended for use in cyclo-cross and have proven to be popular with cycle tourists and commuters too.
The levers fit to the bulge-formed part of most standard handlebars and - by using a shim - to any non-oversized handlebar. The existing brake outer cables need to be cut where the levers occupy space on the handlebars, and the inner cables fed back through the Crosstops to complete the loop to the cantilever arms. They work well with either V-brakes or cantilever brakes though they introduce some friction into the cable run that can be felt at the main brake levers.
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