How to install Sleeper Pro on a Triumph Bonneville Bobber & Speedmaster

HOW TO INSTALL SLEEPER PRO ON A TRIUMPH BONNEVILLE BOBBER

Step by step guide on how to install the sleeper pro on a Triumph Bonneville Bobber & Triumph Bonneville Speedmaster

THE INSTALLATION GUIDE APPLIES TO THE FOLLOWING TRIUMPH MOTORCYCLES:

  • Triumph Bonneville Bobber
  • Triumph Bonneville Bobber Black
  • Triumph Bonneville Speedmaster

HOW TO REMOVE THE EXHAUST

Note: Removal is very similar for the left and right sides of the motorcycle
1 - Use a 12mm socket to slightly loosen the head pipe flange nuts.  

2 - Loosen the four (2) clamps on the catalytic converter with a 10mm wrench

British Customs Sleeper Install on Triumph Bobber

British Customs Sleeper Install on Triumph Bobber

3 - Use a 5 mm Allen to remove the heat shield clamp bolt (on the left-hand side, remove the heat shield mid-section.)

British Customs Sleeper Install on Triumph Bobber

4 - On Speedmaster Models, use 5mm Allen and remove the rear brake lever clevis bolt and slide clevis off the shaft. Gently move clevis and linkage out of the way.  

British Customs Sleeper Install on Triumph Bobber

5 - Use a 12 mm wrench to remove the rear mounting bolt on the underside of the silencer.  

British Customs Sleeper Install on Triumph Bobber

6 - Gently pull the right side heat shield from the tailpipe until it snaps free.

British Customs Sleeper Install on Triumph Bobber

7 - Pull the silencer outward and away from the motorcycle until free from the catalytic converter and rear mounting bracket. Swing the silencer down and removing it from the motorcycle. 

British Customs Sleeper Install on Triumph Bobber

8 - Use a 12 mm socket to remove the rear muffler mounting bracket.  

British Customs Sleeper Install on Triumph Bobber

9 - Repeat removal steps on the right-hand side (exclude steps 4)

INSTALLATION

1 - Assemble British Customs kickstand bracket as shown. The rubber stopper goes in the smaller hole on the lower side of the bend.

British Customs Sleeper Install on Triumph Bobber

2 - Use an 8mm Allen and remove the rear bolt from the subframe on the left-hand side of the motorcycle.  

British Customs Sleeper Install on Triumph Bobber

3 - Place the kickstand stopper bracket into position and secure it with supplied 10 mm socket cap bolt.  

British Customs Sleeper Install on Triumph Bobber

4 - Cycle the kickstand to get the bracket into the proper position, then tighten and torque to 40 Nm. (30 ft-lb)

5 - Install the Sleeper Pro onto the catalytic converter, taking care not to damage gaskets in the catalytic converter. 

Pro Tip: It's easier to install exhausts with the back-end hanging down and then move it to the proper position. 

British Customs Sleeper Install on Triumph Bobber

6 - Lift Sleeper Pro into place and reuse 10mm bolt from factory rear mounting bracket to secure Sleeper Pro to the frame. Do not tighten at this time. 

Note: the orientation of the mounting bracket. The slotted part should be at the top.

British Customs Sleeper Install on Triumph Bobber

7 - Use 12mm socket to tighten head pipe flange nuts and torque to 10 Nm (14 ft-lb)

British Customs Sleeper Install on Triumph Bobber

8 - Tighten the clamps on the catalytic converter to 8 Nm

British Customs Sleeper Install on Triumph Bobber

British Customs Sleeper Install on Triumph Bobber

9 - Attach the heat shield to the tail tailpipe. Tighten camp firmly with 5 mm Allen and torque to 9 Nm.

British Customs Sleeper Install on Triumph Bobber

10 - Go to rear mount and tighten the rear mounting bolt with 12 mm wrench to 19 Nm

British Customs Sleeper Install on Triumph Bobber

11 - Reinstall rear brake clevis onto the shifter shaft. There is a dot on the shaft and a hole in the clevis to ensure proper alignment.

British Customs Sleeper Install on Triumph Bobber

12 - Use 5mm Allen and torque rear brake clevis bolt to 5 Nm.

British Customs Sleeper Install on Triumph Bobber

13 - Repeat Steps 5-10 to install the right-hand Sleeper Pro Exhaust.  

14 - Before starting the motorcycle, check for proper clearance between the exhaust system with the frame, suspension, wiring, etc.


Sleeper Pro installed on a Triumph Bonneville Bobber.

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