Dave Porter

Fettle T-Shirt Grey w/Black Ink PN# TBS-9985 Pattern Parts

Pattern Parts and Fettling to Perfection

Pattern Parts and Fettling to Perfection By Dave Porter, Technical and Customer Support at The Bonneville Shop Occasionally I receive inquiries from customers stating a part that was purchased from The Bonneville Shop does not fit correctly. I typically query the customer about the application, including make, model, and year. Sometimes it is revealed that […]

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Service Bulletin 64 Triumph header

Triumph Service Bulletin 64/1 – 1964 Forks – Eliminating Oil Leaks

1964 Forks – Eliminating Oil Leaks By Dave Porter, Technical and Customer Support at The Bonneville Shop One topic that comes up occasionally when discussing the early unit-construction Triumph B and C-range telescopic forks is the fork oil seal holders, or “dust excluder sleeve nuts”, as termed in the Triumph parts catalogs. The new external

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37 4275g blog 1

Tips on Fitting the Girling Stainless Floating Brake Disc Rotor

By Dave Porter, Technical and Customer Support at The Bonneville Shop We have recently taken delivery and sold through our initial shipment of Girling’s new 37-4275G Stainless Floating Brake Disc Rotor. The reception in the marketplace has been favorable and the increased performance characteristics of the nearly 2 lbs. of rotational weight savings have been

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BSA motorcycle Hornet A65 small BSA Thunderbolt

Thunderbolts and Lightning: BSA Motorbikes

Pioneers in British Motorcycles 1930s BSA History In 1936, Sangster purchased the financially struggling Triumph Cycles and re-established it as the Triumph Engineering Company. He then brought Turner over from Ariel, and the Speed Twin, Turner’s parallel twin cylinder engine debuted two years later, setting the standard for design and engineering. Meanwhile, Val Page and

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