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Muffler and Frame Clamps

742-Series

These Original Equipment Manufacturer style muffler clamps come with the special washer and bolt for the original look. Muffler clamps can also be ordered under the O.E.M. part numbers for individual pieces.

742-138 - MUFFLER CLAMP, 1-3/8"
742-112 - MUFFLER CLAMP, 1-1/2"
742-158 - MUFFLER CLAMP, 1-5/8"
742-134 - MUFFLER CLAMP, 1-3/4"
742-178 - MUFFLER CLAMP, 1-7/8"

742-118/T160 - EXHAUST CLAMP, 1-1/8", T160 COLLECTOR

#742-118/T160 - EXHAUST CLAMP, 1-1/8", T160 COLLECTOR

A Brief Guide to Muffler & Clamp Sizes:

Please note that measurements given below are for stock, low, exhaust pipes. High pipes and custom exhaust may differ. When ordering for those, or any case where there is any question on size of clamp required, please advise us of O.D. of exhaust pipe at outlet in inches. Size of clamp required would be next size up, to allow for wall thickness of muffler.

Outside Diameter of the Exhaust Pipe - Inside Diameter of the Muffler

1962-68 Norton Atlas - 1-5/8" - uses 1-3/4" clamp
1968-69 Norton Commando (w/ Atlas style mufflers) - 1-5/8" - uses 1-3/4" clamp
1970-75 Norton Commando - 1-3/8" - uses 1-1/2" clamp

All BSA Twins - 1-1/2" - uses 1-5/8" clamp
1971-72 BSA A75 - 1-1/2" - uses 1-5/8" clamp

All Preunit Triumph OHV Twins - 1-3/4" - uses 1-7/8" clamp
All Unit Triumph 650, pre 1975 - 1-1/2" - uses 1-5/8" clamp
1973 on Triumph 750 Twins - 1-3/8" - uses 1-1/2" clamp
Triumph Triples used various mufflers and clamps.


Frame Clamps

742-Series

Great for securing exhaust systems, oiltanks, footpegs, crash bars, etc., without welding.

742-78  - FRAME CLAMP, 7/8"
742-1   - FRAME CLAMP, 1"
742-118 - FRAME CLAMP, 1-1/8"
742-114 - FRAME CLAMP, 1-1/4"