THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. Click 'I agree' or any link to accept these cookies. To learn more about how we use cookies, read our privacy policy. My Nexus hub needed this length rod to push the Nexus clutch over far enough inside the hub to engage the pawls for third gear (actually the ring gear). Another valuable web site for 3 speed hub information is Sheldon Brown’s web site at: sheldonbrown.com. A wonderful theory and explanation of how the internal 3 speed hub’s work.

Today, we’re going to work on internal multi speed hubs. This is the Shimano shifter. It is the Nexus model, which is written on the body. Another way to tell that this is Shimano is that the cable chord goes straight into the adjustment knob, which goes straight into the body of the shifter.

Shimano Nexus 3 Speed Hub Manual Transmission

Now, the first thing you want to do is go up to the shifter on the handlebar and put it into second gear, the middle gear. You need two tools: an open end 10 mm wrench and you may also need a pair of pliers.

Shimano Nexus 3 Speed Hub Installation

The first thing you do is loosen the lock nut right up against the body of the shifter. Loosen that and it allows the adjustment knob to be free. Sometimes you will need a wrench to move it. You will see there are two lines in the window of the shifter and there is a piece inside that has a little yellow indicator. You want to line that yellow between the two lines with the adjustment knob. When you get the yellow right between the two lines, go ahead and put the lock nut right up against the body of the shifter, and tighten it with the 10 mm wrench, so that adjustment stays nice and firm.

Shimano Nexus 3 Speed Kit

Now you’re done. Take it for a ride and make sure it shifts properly.