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InstructIon Manual
Rotors
Some BMX Freestyle bikes are equipped with a Rotor - a special headset mechanism which allows the handlebars to be turned 360 degrees without causing the brake
cables to become tangled. The front brake cable is routed throuth the centre of a hollow headstem and the fork, then up to the right control lever. The rear brake cable
is split at the rotor bearing mechanism which transfers the left control lever pressure to actuate the rear brake. The system must be correctly adusted. Components will
already be installed on a new bike but the cables may need connecting.
Rotors Installation and Adjustment
uPPEr caBlE
1. First connect the barrel end of the upper cable to the left rear brake lever. Make sure the long casing is on top of the short cable casing; otherwise, the upper cable
will have a twist in it.
2. Route the upper cable throuth the handlebars(below the crossbar) with the short cable casing on the same side as the rear brake lever.
3. connect the upper cable to the upper plate by passing the football ends of the upper cable through the threaded holes in the upper plate and connecting them to the
bearing.
4. screw the adjusting barrels into the upper plate. Don’t tighten the locknuts at this time.
loWEr caBlE
1. slide the cable casing through the cable guide on the frame.
2. connect the lower cable to the lower plate by passing the football ends of the lower cable through the through the threaded holes in the lower plate and connecting
them to the bearing.
3. screw the adjusting barrels into the lower plate. Don’t tighten the locknuts at this time.
4. connect the lower cable to the rear brake. Don’t adjust the rear brake at this time.
notE: check to make sure all cable casing ends on the upper and lower cables are seated correctly, and that the spring tension of the rear brake is pulling the bearing
down.
aDJustMEnt
1. Screw the cable adjusters on the rear brake lever and the upper cable splitter all the way in.
2. Screw the adjusting barrels in the upper plate in (or out) to set the bearing for maximum travel. The bearing should be as far down as it can go without resting on the
lower plate or the adjusting barrels that are screwed into the lower plate.
3. use the adusting barrels that are screwed into the upper plate to make the bearing parallel to the upper plate. use a 10mm wrench to tighten the locknut on the left
adjusting barrel of the upper cable. Leave the right adjust barrel loose.
4. screw the lower cable adjusting barrel into (or out of ) the lower plate until they are as close to the bearing as they can get without toughing it.
Detailed maintenance
