I'd stay with 3x7, personally, but it's your money and it sounds like you may have a line on cheap parts. Some claim to be okay with 9-speed chains on 7/8-speed rings, but that's the only combo that's ever caused me to break a chain, so I don't do it. If you go 9-speed, you're also going to have to change the chainrings and chain out for 9-speed, as 6/7/8-speed chains are wider, as are the associated chainrings.

I think the hub spacing problem is the primary reason people were advising against 9-speed, but 8- and 9-speed require the same hub spacing. Of course, you will also need a new rear wheel, or at least a hub. It bridges the area between mountain bikes and road bicycles, which makes this a veritable monstercrosser. So.you're going to have to spread the frame a little to accommodate an 8-speed or 9-speed (both 135mm) rear hub - at 5mm, this probably isn't a big deal. Great Frame Geometry, due to the cyclo-cross heritage of the frame, makes the CX700 especially versatile. Bikepedia cuts out at 1993, so there's no info on earlier bikes.Īnyway, this means it came with 7 cogs, which means it came with 130mm rear hub spacing. If the handlebars are stock GT Ergo units, then it's a 1993 or 1994 model, or possibly earlier. Here is a not great cell phone pic I was sent: ORIGIN 8PROPULSION SERIES CARBON BIKE FRAME You are currently bidding on a previously owned Origin. There really is just not a lot of information anywhere! Origin8 Fix8 Single Speed Frameset with Extras. Is anyone here familiar with this model? I've looked it up on bikepedia but there are no pictures of this bike so I can't confirm it is the same. I'm really on a budget with this tour, but obviously want something reliable, so I'm trying to decide between picking up something like this or just going with a new Origin 8 Cx700 frame and building from there, which will of course cost more. Weight comes in at 24lbs as is right now.

This bike is in excellent condition (I cant find any scratches) and is extremely versatile. Origin8 CX700 Foxtrot Black Ops edition cyclocross bike established as a road bike. I'd probably be changing it out to a 1x9, which means a new rear wheel at the least. 1 Im selling an Origin8 CX-700 cyclcross/monster cross bike. Origin 8 CX700 Foxtrot Black Ops Cyclocross / Road Bike. It looks to be mostly original but in good shape. He called me today with info on a 1993 (we think) GT Cirque that his buddy just got into the shop on consignment for $80. I'm looking to do a bike tour this summer and I have a friend in Florida helping me with the build. I can't really find much info on it searching around the web, or even this forum. I'm hoping some GT experts here can help shed some light on this model.

Origin 8 cx700