Yes, single chainring. The Kona A'ha was a production singlespeed, and there's no stop for a front mech. I never got around to organising either a bolt-on stop or an E-type mech, so just ran it with a 36T chainring.
This was fine from a gearing point of view (although hard work obviously with big loads uphill) but is a very bad idea generally because with so much chain there is huge potential for it to get tangled in something if it gets thrown. On this conversion I eventually fitted a Kore device and a bash ring to keep it in place, a triple and a front mech is much better.
This ain't my idea, by I tried it, and it works well:
I rigged a spring from the R. derailleur cage to the back of the Free Radical to maintain chain tension. Here's a pic: http://flickr.com/photos/davidmoskovitz/2375136151/ Pardon the cheapo-derailleur, but it works, and it soaks up chain like a sponge.
An Xtracycle is a frame attachment for a standard bike that converts it into a cargo bike. It's like turning a car into a pickup truck.
With this attachment, an Xtracycle-equipped bike can carry groceries, passengers or just about anything.
Watch this video to learn more
Nice rig.
ReplyDeletesingle chainring up front?
ReplyDeleteYes, single chainring. The Kona A'ha was a production singlespeed, and there's no stop for a front mech. I never got around to organising either a bolt-on stop or an E-type mech, so just ran it with a 36T chainring.
ReplyDeleteThis was fine from a gearing point of view (although hard work obviously with big loads uphill) but is a very bad idea generally because with so much chain there is huge potential for it to get tangled in something if it gets thrown. On this conversion I eventually fitted a Kore device and a bash ring to keep it in place, a triple and a front mech is much better.
Device picture here: http://www.flickr.com/photos/27975539@N08/2721347923/in/set-72157605772907273/
Cheers
Jon Rollason
This ain't my idea, by I tried it, and it works well:
ReplyDeleteI rigged a spring from the R. derailleur cage to the back of the Free Radical to maintain chain tension. Here's a pic: http://flickr.com/photos/davidmoskovitz/2375136151/
Pardon the cheapo-derailleur, but it works, and it soaks up chain like a sponge.