Kassett til gammel deore lx

B-Screw Adjustment

After setting the L-screw, check the "B-screw" for an adequate setting. The B-screw controls the derailleur body angle, hence the name, B-screw. There are two basic designs in the upper pivot, those with a spring in the upper pivot, and those without a spring in the upper pivot.

For derailleurs with a spring in the upper pivot, begin by shifting to the innermost rear cog, which is the largest cog. View the upper pulley relative to the largest cog. If the pulley is rubbing against this cog, tighten the B-screw to increase upper pivot spring tension, which pulls the pulley back and away from the cog. If there is a large gap between the upper pulley and cog, loosen the screw. To find a good setting, loosen the B-screw until the upper pulley begins to rub, then tighten the screw to get clearance.

There are two basic designs in the upper pivot, those with a spring in the upper pivot, and those without a spring in the upper pivot.

Jeg kjøpte en 11-28 kassett fra Sram som jeg monterte på en 8 girs sykkel. Byttet alle drev foran også og satte på et mindre kjedehjul (24) foran på det innerste for å kompensere for utvekslingen som ble høyere. Fungerte helt fint.