Forum Donations
Search
VTF Google Search
 Click Here

Anyone tryed cb750 rear hub?

  • Advertisement

Post a reply

Anyone tryed cb750 rear hub?

PostAuthor: repair » Fri Aug 11, 2017 1:19 pm

faffi wrote:If you seek online, you will find many sites (prolly this one as well) have listings of wheel axle sizes. So you may be able to find other wheels that will be easier to fit than that of an XS650. But the main issue will often be that of getting both the sprockets and rims to run in line - although you will hardly notice a rim offset that's less than 20 mm when it comes to handling.


I should try too mount a cb 750 rear hub xs650 has no rubber damping
and cb750 has 20mm axle so i hope it's possible
on front I'm not sure yet
Anyone tryed cb750 rear hub?

repair
Junior Membership
Junior Membership
 
Posts: 7
Joined: Fri Aug 11, 2017 1:11 pm
  Flag
Bike year & model: yamaha TR1 1984 model
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: beltdrive » Fri Aug 11, 2017 3:32 pm

You will need a Honda brake drum as well, I like to keep everything as simple as possible, as how to get spares later.

On my XV 1000 Beltdrive, I have spoke hubs front and rear, from a 1984 Virago, on the rear, I cut the spokes of a TR1 rim, then I cut of the brake drum part of the hub, I machined the sprocket/damper hub-part, where the sprocket and rubber dampening sits and bolted it on to the spoke hub, where the driveshaft spline had been bolted on and then you have a chain drive spoke hub, on which you can mount almost any rim size, that can clear your front and back forks.

Have fun Hi from Erik
Image
1981 XV 1000 Beltdrive Special - Happy wrench time, thanks everybody, I enjoy this community, hi from Erik
User avatar
beltdrive
Senior Membership
Senior Membership
 
Posts: 113
Images: 12
Joined: Fri Aug 21, 2015 8:10 am
Location: Denmark NE - former Canadian-Calgary - MARADAtech - Hotel Brinkly - gterik@gmail.com Flag
Bike year & model: 1981 XV 1000 Beltdrive Special, 1982 Yamaha XV920 Virago 10L
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Mon Aug 14, 2017 12:50 am

repair wrote:
faffi wrote:If you seek online, you will find many sites (prolly this one as well) have listings of wheel axle sizes. So you may be able to find other wheels that will be easier to fit than that of an XS650. But the main issue will often be that of getting both the sprockets and rims to run in line - although you will hardly notice a rim offset that's less than 20 mm when it comes to handling.


I should try too mount a cb 750 rear hub xs650 has no rubber damping
and cb750 has 20mm axle so i hope it's possible
on front I'm not sure yet
Anyone tryed cb750 rear hub?


I'm wondering how difficult it is to fit also. The description of this bike says he runs a cb750 hub on the rear: http://www.bikeexif.com/yamaha-tr1-cafe-racer

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: faffi » Mon Aug 14, 2017 2:55 pm

Surprised that there was enough clearance towards the chain to run the CB750 hub. Perhaps he shimmed the sprocket or found a different sprocket carrier that fit. Something off a cruiser may be a better option if running a wide rear tyre. Kawasaki Vulcan 800 and chain drive Honda Shadow 600/750/800 as well as the Savage 650 from Suzuki could be good options worth checking out.
User avatar
faffi
Silver Membership
Silver Membership
 
Posts: 2237
Images: 10
Joined: Sun Feb 15, 2015 3:11 pm
  Flag
Bike year & model: 1982 XV750SE with XV1100 engine, XT600Z shock absorber, 18" Seca rear wheel
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: Jake » Mon Aug 14, 2017 3:55 pm

There is at least two, maybe three lists of axle and fork tube sizes in VTF Tech Articles.

Look for the one I posted, it's different than others in the respect that I have made all of the Virago info in red fonts so it's easy to find.
Forum Tutorials can be found here http://viragotechforum.com/viewforum.php?f=177

Forward Control Templates ( FREE ) http://viragotechforum.com/viewtopic.php?f=124&t=21556


“It ain’t what you don’t know that gets you in trouble. It’s what you know for sure that just ain’t so.”
~Mark Twain
User avatar
Jake
Mod
Mod
 
Posts: 10936
Images: 112
Joined: Wed Jun 06, 2007 3:18 pm
Location: PA Flag
Bike year & model: 1996 XV750
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Tue Aug 15, 2017 3:35 am

faffi wrote:Surprised that there was enough clearance towards the chain to run the CB750 hub. Perhaps he shimmed the sprocket or found a different sprocket carrier that fit. Something off a cruiser may be a better option if running a wide rear tyre. Kawasaki Vulcan 800 and chain drive Honda Shadow 600/750/800 as well as the Savage 650 from Suzuki could be good options worth checking out.


I emailed member motorpickle who has also posted on this forum that he used cb750 rear hubs for conversions and he mentions that you probably want a hub from a later year cb750 as they had a different sprocket carrier. I looked into it a bit and the 77-78 version of the bike ( at least the UK version) use a 17" rim and 630 sprocket on the rear.

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: repair » Wed Aug 23, 2017 12:36 pm

briandk wrote:
repair wrote:
faffi wrote:If you seek online, you will find many sites (prolly this one as well) have listings of wheel axle sizes. So you may be able to find other wheels that will be easier to fit than that of an XS650. But the main issue will often be that of getting both the sprockets and rims to run in line - although you will hardly notice a rim offset that's less than 20 mm when it comes to handling.


I should try too mount a cb 750 rear hub xs650 has no rubber damping
and cb750 has 20mm axle so i hope it's possible
on front I'm not sure yet
Anyone tryed cb750 rear hub?


I'm wondering how difficult it is to fit also. The description of this bike says he runs a cb750 hub on the rear: http://www.bikeexif.com/yamaha-tr1-cafe-racer


Tanks for response
I you look closely on picture of rear hub you can see a spacers behind sprocket

repair
Junior Membership
Junior Membership
 
Posts: 7
Joined: Fri Aug 11, 2017 1:11 pm
  Flag
Bike year & model: yamaha TR1 1984 model
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: repair » Wed Aug 23, 2017 12:42 pm

briandk wrote:
faffi wrote:Surprised that there was enough clearance towards the chain to run the CB750 hub. Perhaps he shimmed the sprocket or found a different sprocket carrier that fit. Something off a cruiser may be a better option if running a wide rear tyre. Kawasaki Vulcan 800 and chain drive Honda Shadow 600/750/800 as well as the Savage 650 from Suzuki could be good options worth checking out.


I emailed member motorpickle who has also posted on this forum that he used cb750 rear hubs for conversions and he mentions that you probably want a hub from a later year cb750 as they had a different sprocket carrier. I looked into it a bit and the 77-78 version of the bike ( at least the UK version) use a 17" rim and 630 sprocket on the rear.



Thanks for info
i have bought a 78 cb750 hub, waiting for the postman next problem is the offset

repair
Junior Membership
Junior Membership
 
Posts: 7
Joined: Fri Aug 11, 2017 1:11 pm
  Flag
Bike year & model: yamaha TR1 1984 model
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Wed Aug 23, 2017 11:09 pm

repair wrote:
Thanks for info
i have bought a 78 cb750 hub, waiting for the postman next problem is the offset


Waiting for mine to drop off a 77 wheel from ebay. Looking forward to see what you find out also.

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Sat Oct 07, 2017 4:38 pm

Small update.

The ebay seller messed up, so I actually got a 79+ dohc cb750 wheel, which I found out trying to fit a K8 sohc brake plate to it. Fortunately it mates perfectly to the K8 sprocket carrier and I found a NOS dohc brake anchor plate for 7 eur on eBay. I now have a bit of a mix of components, but measurements look good and I will try to do a test fit on my parts bike as soon as I get a jack (no center stand).

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: faffi » Sun Oct 08, 2017 12:51 pm

Will follow with interest.
User avatar
faffi
Silver Membership
Silver Membership
 
Posts: 2237
Images: 10
Joined: Sun Feb 15, 2015 3:11 pm
  Flag
Bike year & model: 1982 XV750SE with XV1100 engine, XT600Z shock absorber, 18" Seca rear wheel
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Sun Nov 05, 2017 2:05 pm

Looks like a resonable straight fit:

Image
Image

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: faffi » Sun Nov 05, 2017 3:45 pm

:GJ: (or great luck ;)
User avatar
faffi
Silver Membership
Silver Membership
 
Posts: 2237
Images: 10
Joined: Sun Feb 15, 2015 3:11 pm
  Flag
Bike year & model: 1982 XV750SE with XV1100 engine, XT600Z shock absorber, 18" Seca rear wheel
Sex: Male

Re: Anyone tryed cb750 rear hub?

PostAuthor: briandk » Mon Nov 06, 2017 7:32 am

faffi wrote::GJ: (or great luck ;)


Probably the latter :)
I'll update when I've worked out the exact spacing and got chainwheel and countershaft sprocket installed.

briandk
Junior Membership
Junior Membership
 
Posts: 29
Joined: Fri Aug 04, 2017 7:15 am
Location: Denmark Flag
Bike year & model: 83 TR1
Sex: Male



Post a reply


  • Advertisement

Return to Yamaha XV920R / TR1

Who is online

Registered users: 01vic1510, Baidu [Spider], Google [Bot], harrybb1991, jthommo1947, Majestic-12 [Bot], Yahoo [Bot]