NORTON BELT DRIVES
Belt Drives - Use of a belt, instead of a chain, for primary drive offers many advantages including reduced vibration, lower maintenance, and less damage if a breakage occurs. Our English made belt drives feature hard anodized aluminum pulleys to minimize weight, a steel plate in the clutch pulley to reduce wear and a sealed bearing which allows the primary to be run dry, eliminating both clutch slippage from oil ruined clutch plates and a source of leaks. Use of an AT10 steel backed polyurethane belt provides greater strength than conventional belts and virtually eliminates any need for adjustment. The pulley ratios have been selected to minimize loads on the gearbox and increase the primary ratio.
As this effectively raises the gearbox sprocket by approx. 2 teeth you may want to consider going to a smaller gearbox sprocket when fitting the belt drive. We also highly suggest fitting the Dual Anchor mount shown below.
Replacement Belts - The pulley sizes on the belt drives have varied over the years and we stock all the corresponding belt lengths needed to accommodate them.
|27MM x 98 Tooth AT10||-||#A3606||-||$74.95|
|32MM x 89 Tooth AT10||-||#C3015||-||$66.00|
|32MM x 92 Tooth AT10||-||#C3016||-||$68.50|
|32MM x 96 Tooth AT10||-||#C3017||-||$69.00|
|32MM x 98 Tooth AT10||-||#C3018||-||$68.00|
|32MM x 100 Tooth AT10||-||#C3019||-||$69.00|
|40MM - HD Race Belt||-||#C3081||-||$57.00|
Dual Anchor Gearbox Mount - Use of this double-sided,
stainless steel unit to set the upper gearbox location eases
alignment of belt drive pulleys and/or reduces gearbox movement
under heavy loads. This part has been recently redesigned and
although functionally the same no longer matches the current photo.
Installation requires the removal of the inner primary cover and
drilling of the drive side engine plate. When used on a featherbed
model, the short section of chainguard attached to the factory inner
primary cover blocks access to the drive side adjustment and must be
removed. - #N3020 - $85.00 ($72.00 when purchased with our belt
|Aluminum Racing Belt Covers - A lightweight, aluminum cover
intended to replace the inner and outer primary covers on Norton vintage
racers. This item is intended for racing only and will not accept an
alternator. While the belt is enclosed, there is complete access to the
clutch and engine pulley. A mounting kit is included as are
instructions. These are of high quality construction but may have slight
cosmetic imperfections as, to keep the price affordable, function was
deemed more important than looks. Latest version is partially closed
Commando - #C3090 - Sold Out Dommie/Atlas - #A3620 - Sold Out
|Commando Fiberglass Outer Primary Cover (1969-74) - With Norton belt drives eliminating the oil from the primary drive, it has become increasingly popular to machine a ï¿½hole patternï¿½ in the outer cover to both vent the belt and more importantly add a custom look to the bike. To eliminate both the need to modify the factory cover and to work around the existing inspection holes/caps, we have had a heavy duty, outer fiberglass cover produced. The standard inspection/access and oil level holes have been eliminated while the factory mounting system has been retained. The cover is currently available with a gloss black gel coat finished . - #C3093 - Temp unavailable.|
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