SHIMANO "DUAL PIVOT" SIDE-PULL BRAKES - An Overview


In Shimano's Dura-Ace, Ultegra, and 105 SC series brakes, there exists a "Dual Pivot Brake". It's a side-pull brake. These brakes have three arms that form the caliper. The arm nearest the bike (1) which is held in place by the pivot bolt serves as a mounting for the arm farthest from the bike (3). Between these two is another arm (2) held in place by the pivot bolt. Arm 2 works just the way the short pivot arm has always worked. Arm 3, holding the brake pad, has a pivot bolt half way between the traditional brake and the brake pad, which is fixed to arm 1. Using the dual pivot system Shimano has shortened the travel on the long arm. The brakes respond faster, remain centered, and require fewer adjustments.


SHIMANO 105SC STI ROAD BRAKESET

If you are an avid road rider you already know that this is the least expensive Shimano road braking system that incorporates an 8 speed shift system. The shifting is performed by an inward push of a lateral lever behind the brake stopping handle. The left lever, with an inward push performs shifts between the front chain rings. The calipers and levers are painted in the metallic Silver color. The brake lever/shifter comes with the set of dual pivot calipers and the vcables described above.
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Shimano Ultegra (6403) Dual Pivot Brakeset and Ultegra STI Brakeset

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