Singlespeed & Fixed Gear - chain tension

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : chain tension


inkdwheels
02-20-04, 06:56 PM
I saw a picture of a guys singlespeed bike with vertical dropouts that used an old chainwheel or cog stuck in his chain near the rear dropout to achieve chain tension. Does anyone know if this works?


BlastRadius
02-20-04, 07:04 PM
You mean something like this?
http://www.surlybikes.com/hotmetal/parts_Singlelator.html

These can't be used on fixed gears though.

inkdwheels
02-20-04, 07:21 PM
nope it was just a chainwheel, nothing else and it was just suspended in the chain to take up slack.


familyman
02-21-04, 05:24 AM
It's called a ghost ring, I think Sheldon mentions it briefly on his site. Maybe I read it somewhere else but yea, it's rumored that it works if you have exactly the right ring and it won't hit the chainstays.

roadfix
02-21-04, 09:41 AM
Wouldn't it pop off under bumpy conditions? Nifty idea.....I'll try one out just to see....

legalize_it
02-22-04, 08:26 PM
i heard it called a phantom gear. they do work somewhat, sometimes. the only problem is if they decide to stop working, expect mangled spokes. i tried it b4 but it doesnt work too well in bumpy conditions. luckily the gear stayed out of my back wheel when it fell out. i wouldnt do it.

inkdwheels
02-22-04, 11:05 PM
I found out that 42-16 works on my bike perfectly!! I just got back from riding. I start work messengering tomorrow and i'll give a lil report after work in my other thread (messengering) Thanks for the help guys.