OzVMX Forum

Clubroom => Tech Talk => Topic started by: Michael Moore on February 12, 2014, 05:11:10 am

Title: FYI: some pre-75 disc VMX brake documentation
Post by: Michael Moore on February 12, 2014, 05:11:10 am

Triple-disc 175 lbf (claimed) CZ250:

http://www.eurospares.com/graphics/CZJawa/LtWtCZ_CI051974.pdf

With the magazine lead times that CZ had to have been built in 1973.

The cover bike for that issue was a Rokon enduro with discs front and rear.

The May 1973 issue of Dirt Rider has an article on Red Line frames showing both Triumph and Honda XL-engined scramblers with what appear to be Hurst-Airheart rear discs.  It also shows Red Line's "new idea" box section swing arm with internal sliding block axle adjusters.  As with the earlier article, lead times mean that all probably dates from 1972.  The article was longer than I wanted to spend time scanning but if there's some interest in it I'll put it in the scanner queue.

cheers,
Michael

Title: Re: FYI: some pre-75 disc VMX brake documentation
Post by: euro bikes on February 14, 2014, 07:58:11 am

Thanks for putting that up, interesting article a time when people were experimenting a lot with different ideas ,today there is not much you can do with the modern bikes.

Title: Re: FYI: some pre-75 disc VMX brake documentation
Post by: 80-85 husky on February 14, 2014, 08:49:10 am

if you look at the 84 ISDE footage, the huskys had discs I rekon

Title: Re: FYI: some pre-75 disc VMX brake documentation
Post by: FourstrokeForever on February 14, 2014, 09:51:32 am

Quote from: John Cahill on February 14, 2014, 08:49:10 am

if you look at the 84 ISDE footage, the huskys had discs I rekon

Front discs were common place in '84 John. Maybe the Husky team put a decent Honda front end on their bikes  ;D

Title: Re: FYI: some pre-75 disc VMX brake documentation
Post by: firko on February 14, 2014, 11:15:49 am

Quote

if you look at the 84 ISDE footage, the huskys had discs I rekon

So did my TT600 ???. The threads about pre 1975