Road Bike Derailleur Adjustment

Don t get too hung up on this particular adjustment.

Road bike derailleur adjustment.

Of the two screws on top of the derailleur the one nearest the frame usually controls the lower limit. The derailleur is usually attached to the bike frame the metal skeleton of the bike. Grip the top of the cable and pull up on it then loosen the bolt. With the chain on the biggest cog at the rear adjust the inner adjusting screw so that when the chain is on the smallest chainring it sits in the middle of the derailleur side plates.

2 shift the bike to the highest possible gear. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of th. This will clamp the bolt down on the cable so it can t move. Multiple gearing has been available for bicycles since the.

This dictates how close to. How to adjust a rear derailleur. How to fix the shifting on your bike. The majority of road and mountain bike derailleurs require a gap between 5 and 6 millimeters.

To adjust a derailleur you ll need to pedal the bike while working. Thankfully adjusting a rear derailleur on a bike is a solution that is fairly simple and possible for most if not all home mechanics. The lower the cage is the better it will shift. Shift into the smallest front chainring and largest rear sprocket.

Pull the cable up so that it is tight then re tighten the bolt again. For correct height adjustment position the bottom of the derailleur cage as close to the largest sprocket teeth as possible so that it still clears. On the rear axle the lowest gear 1 st is the largest sprocket and the highest gear 5 th 6 th 7 th depending on how many sprockets are on the cassette is the smallest sprocket. If the bike is shifting well the b screw is probably within acceptable adjustment range.

Manufacturers recommend a 2mm spacing but this is only meant as a general guide and not a rule.