- Feb 5, 2021
i have a 69 ranger frame and swing arm how much work is it to use a 72 commando fork and wheels on this frame
i think your stuck with the ball bearings in the steering head i have aftermarket alloy yokes with a smaller stemSteering head bearings might require some creative thinking if the fork stanchion tube diameters are different and you have to use the Commando yokes. If the fork stanchion tube diameters are the same, you might be able use the P11 yokes. You can also get aftermarket yokes for whatever diameter stanchion tubes you have. It is also possible that you could make a long bushing that would let you use the P11 ball bearing setup. The P11 has ball bearings and races in the steering head. Dinosaur scrambler and old bicycle technology. Commando has sealed steering head bearings. I don't know if sealed bearing setups are now available for the Matchless frame used on the P11. Races would have to be removed, and I don't know what else. The rear axle diameter and length differs I believe, and may require some attention to get the sprockets and chain to line up on the final drive. That said, I've never tried what you are thinking of doing, but I know it is not impossible.
Maybe you'll eventually get a useful reply from somebody that raced a P11 frame, and used Commando forks and wheels.
There looks to be a 1967 N15CS Norton hybrid with Commando (?) forks on UK eBay
(I realise an N15 is not a P11 and has a totally different frame)
Is there a reason Matchless forks are not liked and need to be changed?
It's been quite awhile since I did this job on the Patrick racer but as I recall all that was needed was new ball bearings and a good adjustment. The Patrick racer front forks was entirely Atlas scrambler (long roadholders) front end. Matchless teledraulics use the smaller ball bearings. Also many a P11 front end was converted to Ceriani or Betor front forks.The Commando forks tubes have a tapered top while the Matchless does not, so it seem you would need to use Norton yokes. The N15 used Norton yokes on a Matchless frame with loose ball bearings, so perhaps the Norton yokes could be easily adapted.
Jerry Kaplan probably could shed some light on this as Mike Patrick's P11 used Norton forks..
did you use the atlas cups and bearings the bearings are not the same sizeIt's been quite awhile since I did this job on the Patrick racer but as I recall all that was needed was new ball bearings and a good adjustment. The Patrick racer front forks was entirely Atlas scrambler (long roadholders) front end. Matchless teledraulics use the smaller ball bearings. Also many a P11 front end was converted to Ceriani or Betor front forks.