« previous next »
Pages: [1]   Go Down

Author Topic: Rear disc rim limitations  (Read 671 times)

0 Members and 1 Guest are viewing this topic.

Offline thelowmax

  • Hot Shot
  • ***
  • Posts: 423
Rear disc rim limitations
« on: July 31, 2013, 09:40:59 AM »
Mostly I go with stock and augment just a bit. But along with the notion of the 16"er, and more chrome, I have always been interested in getting a spoked rear disc brake setup on my bike. I recently saw a wheel for sale that is a Super Sport hub laced with what looks like a 16" drop center Harley rim. There is no disc. But from comparisons to other CBs and Fs, I began to question whether the rim will clear the braking mechanism. Anybody have any info or thoughts?

Logged
What am I doing and why am I doing it? Those are excellent questions.

'72 Amen Savior/'77 CB750K Chrome/Da Bhudda(project)
'73 CB750K Green/El Verde (beat)
'76 CB750K Red/The Cinnabomb (sweet)
'77 CB750K Black (frame and parts) CANNIBALIZED
'77 CB750K Dark Purpley/Scooty Puff, Jr. (la beast)
'78 CB750K Black (struggling) SOLD
'78 CB750K Blue Flake/CiocioSan (minty)
'81 CB750C Poiple/Barbie'sDreamMotorcycle SOLD (darnit!)
'89 Trek 21" 21 speed Green/YaBiatch (the wife)
Converse One Stars size 8.5 Black/Sneaks (suede)

Offline Bankerdanny

  • Eventually I will be old enough in reality to be
  • Really Old Timer ...
  • *******
  • Posts: 7,626
  • Endeavor to persevere
Re: Rear disc rim limitations
« Reply #1 on: July 31, 2013, 10:24:35 AM »
It should be a fairly straight forward measurement. What is the distance from the axle centerline to the highest point on the caliper? What is the distance from the center of the rim diameter and the shoulder of the rim. I would guess (and this is a complete and utter knowledge free guess) that if the former (the center to caliper measurement) exceeds about 7" you are SOL using a 16" rim.
Logged
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline bjbuchanan

  • Master
  • *****
  • Posts: 2,276
Re: Rear disc rim limitations
« Reply #2 on: July 31, 2013, 10:25:40 AM »
I'm don't have eyes on kinda help but I think the caliper would be what would make or break the fitment back there with a 16" wheel
Logged
The dirty girl-1976 cb750k, Ebay 836, Tracy bodykit
Round top carbs w/ 38 pilots, middle needle position, airscrew 7/8ths out, 122 main jet
Stock airbox w/ drop in K&N, Hooker 4-1

Don't trust me alone with a claw hammer and some pliers

Offline Bankerdanny

  • Eventually I will be old enough in reality to be
  • Really Old Timer ...
  • *******
  • Posts: 7,626
  • Endeavor to persevere
Re: Rear disc rim limitations
« Reply #3 on: July 31, 2013, 10:31:56 AM »
If you send a PM to Expent (Eric) and ask I'm sure he would measure the distance on the wire wheel F bike he recently acquired for you.
Logged
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline thelowmax

  • Hot Shot
  • ***
  • Posts: 423
Re: Rear disc rim limitations
« Reply #4 on: July 31, 2013, 12:20:05 PM »
Quote from: bjbuchanan on July 31, 2013, 10:25:40 AM
I'm don't have eyes on kinda help but I think the caliper would be what would make or break the fitment back there with a 16" wheel

I agree. I'm off to measure my caliper. Anybody have the rear disc dimensions?
Logged
What am I doing and why am I doing it? Those are excellent questions.

'72 Amen Savior/'77 CB750K Chrome/Da Bhudda(project)
'73 CB750K Green/El Verde (beat)
'76 CB750K Red/The Cinnabomb (sweet)
'77 CB750K Black (frame and parts) CANNIBALIZED
'77 CB750K Dark Purpley/Scooty Puff, Jr. (la beast)
'78 CB750K Black (struggling) SOLD
'78 CB750K Blue Flake/CiocioSan (minty)
'81 CB750C Poiple/Barbie'sDreamMotorcycle SOLD (darnit!)
'89 Trek 21" 21 speed Green/YaBiatch (the wife)
Converse One Stars size 8.5 Black/Sneaks (suede)
Pages: [1]   Go Up
« previous next »