Frame Splitter for Belt Drive
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Frame Splitter for Belt Drive
Postby rifraf » Sat Dec 22, 2012 1:58 am
I came across this in another forum and thought I'd share:
http://www.paragonmachineworks.com/cgi- ... egory=TS09" onclick="window.open(this.href);return false;
Not sure if "The Shed" is the best place to post it but........ here it is anyway.
Certain opens up some possibilities for those lusting after a belt drive but thinking an expensive custom frame is the stuff of never never land.
There, my work is done
http://www.paragonmachineworks.com/cgi- ... egory=TS09" onclick="window.open(this.href);return false;
Not sure if "The Shed" is the best place to post it but........ here it is anyway.
Certain opens up some possibilities for those lusting after a belt drive but thinking an expensive custom frame is the stuff of never never land.
There, my work is done
Surly Ogre, Extrawheel trailer.
- WestcoastPete
- Posts: 911
- Joined: Thu Mar 19, 2009 5:59 pm
- Location: Peoples Republic of Coburg, Victoria
Re: Frame Splitter for Belt Drive
Postby WestcoastPete » Sat Dec 22, 2012 3:38 am
Whoa, now you're talking Rif.
I believe this is what's been used on my bike, retrofitted to the Charge Duster frame. I've never opened it up; haven't needed to. They're super solid.
Thinking of a Rohloff/Ogre/Gates bike then? OOooo yeah... Go the centertrak if you do though...
I believe this is what's been used on my bike, retrofitted to the Charge Duster frame. I've never opened it up; haven't needed to. They're super solid.
Thinking of a Rohloff/Ogre/Gates bike then? OOooo yeah... Go the centertrak if you do though...
- find_bruce
- Moderator
- Posts: 10615
- Joined: Mon May 09, 2011 8:42 pm
- Location: Sydney
Re: Frame Splitter for Belt Drive
Postby find_bruce » Sat Dec 22, 2012 8:03 am
Nice find - I presume these need to be brazed into the seat stay.
Anything you can do, I can do slower
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Re: Frame Splitter for Belt Drive
Postby rifraf » Sat Dec 22, 2012 9:52 pm
Hiya Pete,WestcoastPete wrote:Whoa, now you're talking Rif.
I believe this is what's been used on my bike, retrofitted to the Charge Duster frame. I've never opened it up; haven't needed to. They're super solid.
Thinking of a Rohloff/Ogre/Gates bike then? OOooo yeah... Go the centertrak if you do though...
just looking (and lusting) at all the possibilities. I actually found the link on a Moulton forum as there is a lot of
interest in hub gears in general and as well as belt drives. Moulton currently does a budget model with belt drive and a 2 speed hub funnily enough. Unfortunately it utilises a very narrow hub which I think may be 120mm and so my dreams of a cheap Rohloff belted Moulton went out the window upon finding that out. But yeah I'm sure I could find some joy from a belted Ogre and these babies look like what is needed for that. I'm also looking at the costs of adding S&S couplings to a frame to see what the costs add up to. Finances currently dictate looking and going "Oooo" and "Ahhhh" only at the mo, but looking is free.
What is "centertrak"?
Surly Ogre, Extrawheel trailer.
- il padrone
- Posts: 22931
- Joined: Mon Apr 07, 2008 11:57 pm
- Location: Heading for home.
Re: Frame Splitter for Belt Drive
Postby il padrone » Sat Dec 22, 2012 9:52 pm
One way to retrofit a tube joint
http://youtu.be/0Ih-5yiRz-g" onclick="window.open(this.href);return false;
http://youtu.be/0Ih-5yiRz-g" onclick="window.open(this.href);return false;
Mandatory helmet law?
"An unjustified and unethical imposition on a healthy activity."
"An unjustified and unethical imposition on a healthy activity."
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Re: Frame Splitter for Belt Drive
Postby rifraf » Sat Dec 22, 2012 9:54 pm
Hiya Find_bruce,find_bruce wrote:Nice find - I presume these need to be brazed into the seat stay.
yeah thats my take on them! Course someone will probably now come out of the woodwork and kick the hell out of my assumption.
Surly Ogre, Extrawheel trailer.
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Re: Frame Splitter for Belt Drive
Postby rifraf » Sat Dec 22, 2012 9:59 pm
Nice clip IPil padrone wrote:One way to retrofit a tube joint
http://youtu.be/0Ih-5yiRz-g" onclick="window.open(this.href);return false;
Surly Ogre, Extrawheel trailer.
- WestcoastPete
- Posts: 911
- Joined: Thu Mar 19, 2009 5:59 pm
- Location: Peoples Republic of Coburg, Victoria
Re: Frame Splitter for Belt Drive
Postby WestcoastPete » Sat Dec 22, 2012 11:38 pm
That's essentially how my frame was modified, but with a splitter that looks more like the one Rif linked to at the top. The guy also added some extra braze-ons to route the Rohloff cables neatly and repainted the whole frame. It looks like he might have had to pinch the chain stay a touch to get clearance for the belt pully up front too.
When I was in the USA I saw a few Santana Tandems which had their proprietary frame joint, which allowed the bike to be disassembled. They look pretty good I reckon...
(sometimes these image links to CGOAB don't work, so here's the link - http://www.crazyguyonabike.com/doc/page ... size=large" onclick="window.open(this.href);return false;)
When I was in the USA I saw a few Santana Tandems which had their proprietary frame joint, which allowed the bike to be disassembled. They look pretty good I reckon...
(sometimes these image links to CGOAB don't work, so here's the link - http://www.crazyguyonabike.com/doc/page ... size=large" onclick="window.open(this.href);return false;)
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Re: Frame Splitter for Belt Drive
Postby rifraf » Sun Dec 23, 2012 1:27 am
Hi Pete,WestcoastPete wrote: Go the centertrak if you do though...
man I gotta try and stay away from that CGOAB site. It was going to be my new years resolution due to my general tiredness every day due to reading away into the small hours and now you show me your 782 page journal.
Coffee anyone?
Whats the "centertrak" you refer to?
Surly Ogre, Extrawheel trailer.
- WestcoastPete
- Posts: 911
- Joined: Thu Mar 19, 2009 5:59 pm
- Location: Peoples Republic of Coburg, Victoria
Re: Frame Splitter for Belt Drive
Postby WestcoastPete » Sun Dec 23, 2012 1:42 am
It's the 2nd generation of Gates Belt Drive for bikes. I have the first generation which has an outer guide on the front pulley and an inner guide on the rear pulley which keeps the belt from riding off. It's 10mm wide and alignment and tension is critical. The Centertrak is 12mm wide with a central ridge on each pulley, with a corresponding slot in the belt. Alignment and tension are not so critical, and they're supposed to have less inherent friction. You'd need to be a bit more careful that the front pulley wouldn't foul on your chainstay though. I reckon I'd be able to fit one on mine.
- rifraf
- Posts: 3851
- Joined: Fri Apr 15, 2011 5:55 pm
- Location: Two Rocks, WA
Re: Frame Splitter for Belt Drive
Postby rifraf » Mon Dec 24, 2012 1:45 am
Hi Pete,
thanks for clearing that up for me.
Much appreciated.
Cheers
Aidan
thanks for clearing that up for me.
Much appreciated.
Cheers
Aidan
Surly Ogre, Extrawheel trailer.
-
- Posts: 2004
- Joined: Wed Jan 09, 2008 9:20 pm
Re: Frame Splitter for Belt Drive
Postby Crawf » Mon Dec 24, 2012 10:14 pm
Just make sure the rear triangle is not a wet noodle in the first place.
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