marshg246
FULL MEMBER
- Joined
- Jul 2015
- Messages
- 6,078
No, I am not "back" but I am still a Full Member in good standing, so I have an announcement.
When I build pre-MK3 Commandos with cush drives, I install a 520 chain. I was buying the rear hub/sprocket from RGM. Since RGM doesn't even answer emails, I can't get more.
I was recently approached by the company that made the pre-MK3 cush drive rear hubs in 530 and 520 for RGM and makes them today for Andover Norton. They also make MK3 rear sprockets but have never made them in 520. They have committed to make me a small batch for MK3 520 chains when they next make a batch for 530. They say "next year" but I'm pushing them for later this year. They are made in the UK.
I have one customer committed to a MK3 520 sprocket and I'm building a MK3 so I need one too. I've committed to buy four, but if others want them, I can commit to more.
I have eight pre-MK3 cush drive rear hub/sprockets on the way and they should be here late next week.
BTW, some think it is OK to simply turn 530 down to 520. Not true! After being cast, they are machined and then CASE hardened. Turning off the CASE hardening off the edges is not good. Since the bearing surfaces of the sprocket teeth are still CASE hardened, it is not catastrophic, but still not a good practice.
As always see my contact info at the bottom of every page at: https://www.gregmarsh.com and email or call me for more info or for free help with Commandos or Triumphs.
When I build pre-MK3 Commandos with cush drives, I install a 520 chain. I was buying the rear hub/sprocket from RGM. Since RGM doesn't even answer emails, I can't get more.
I was recently approached by the company that made the pre-MK3 cush drive rear hubs in 530 and 520 for RGM and makes them today for Andover Norton. They also make MK3 rear sprockets but have never made them in 520. They have committed to make me a small batch for MK3 520 chains when they next make a batch for 530. They say "next year" but I'm pushing them for later this year. They are made in the UK.
I have one customer committed to a MK3 520 sprocket and I'm building a MK3 so I need one too. I've committed to buy four, but if others want them, I can commit to more.
I have eight pre-MK3 cush drive rear hub/sprockets on the way and they should be here late next week.
BTW, some think it is OK to simply turn 530 down to 520. Not true! After being cast, they are machined and then CASE hardened. Turning off the CASE hardening off the edges is not good. Since the bearing surfaces of the sprocket teeth are still CASE hardened, it is not catastrophic, but still not a good practice.
As always see my contact info at the bottom of every page at: https://www.gregmarsh.com and email or call me for more info or for free help with Commandos or Triumphs.
