Common Part Setbacks

• You might need to add chain links or replace the chain (possible).
• You might need new cable or housing (likely).
• You might need a new derailleur hanger (possible).

Common Tool Setbacks

• You might need a chain tool (possible).
• You might need a bicycle cable cutter (likely).
• You might need a hanger alignment tool (possible).

• No need to break the chain if its intact (remove pulleys instead).
• Check cable & housing for friction.
• Check hanger alignment.

• Lock the cage with a tool.
• Remove the upper pulley.
• Remove the lower cage spacer.

Standard Mount

• Attach the Jab to the hanger.

UDH Stiffener Mount

• Place UDH hanger in frame (no bolt).
• Hanger bolt is reverse thread.
• Thread Jab + hanger bolt in alternating sequence.

T-Type Mount

• Place T-Hanger in frame (no bolt).
• Hanger bolt is reverse thread.
• Thread Jab + hanger bolt in alternating sequence.

• Place the chain in the cage over the lower pulley.
• Install the upper pulley.
• Wide pulley teeth should mesh with wide chain links.
• Install the lower cage spacer.
• Unlock the cage by removing the tool.

• Back the B screw out and rotate Jab counter clockwise until it stops.
• In the small cog, the chain should be behind the cage arm (roughly parallel to it).
• If the chain is slack, remove links.
• If the chain is not behind the cage arm, add links.

• The shifter should be indexed to the small cog.
• Route cable through cable pulley bracket and cam, around the pinch screw under the washer.
• Pull slack out the cable by pulling it rearward.
• Pinch the cable under the washer and screw.

• Check the B gap with the chain and derailleur in the 2nd largest cog.
• Observe the gap between the large cog teeth and the upper pulley teeth.
• Adjust the B screw so the gap is 3mm to 8mm.
• After the adjustment is final, lock it with the jam nut.

• Set both limit screws so the chain cannot go past the outer cogs or make meshing noises.
• Set the barrel adjuster so it shifts up and down at the same speed and does not make meshing noises in any gear.
• Check shift quality while riding.