Still popular in vintage motocross, the mighty B50 grew out of the little C15 and is the last of the BSAs.
For general parts, please see the product indexon the left.
Italian-made Radaellis are an economical choice for chrome rims. Chrome quality is not the very best, but quite acceptable. There are no external markings, and they are shaped like a Dunlop rim. Drilled to match your hub. The sizes and drill patterns listed are in stock; delivery on special-order items takes weeks. Please contact us if you don't see what you need.
Complete seat has a fiberglass replica of the B50MX base, topped with firm foam and an OE-style black vinyl cover. This seat works excellently on the earlier unit single BSA frames, and is also very popular when building specials.
The ultimate repair manual for your motorbike. Available for BSA or Triumph; Singles or Twins.
The NJB MX Expert shocks have been extensively tested for years by top-level riders, thus providing spectacular performance and fade resistance, on a level with the most-expensive vintage MX shocks in the world. Available with a single-rate spring or a dual-rate spring set-up to suit all riders and price points. They are available in 13.0", 13.4", and 14.0"lengths. Priced as a pair, includes bushes and springs.
These popular aluminum-alloy sidepanels require some final fitting by you, which can normally be accomplished by hand. They work on Gold Star, B44 and B50-style frames. Sold as a pair.
US-made Buchanan's stainless steel spokes are painstakingly fabricated one at a time, to provide you the best possible quality. Most vintage spoke kits are built-to-order; expect a lead-time of seven days. Only the most popular options are listed -- please call if you have other requirements.
Unit BSA sprockets are available for #428 or #520 chain; the Gold Star/A10 is for #520 chain only. We only stock a couple of sizes, but others are available on special order.
Since the 1970s, the Gunnar Gasser has been our favorite throttle. These Swedish-made twistgrips are now back in stock. Don't forget the matching cable!
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