Chain / Crank / Pedal problem? help please
#1
Thread Starter
Member
Joined: Mar 2009
Posts: 26
Likes: 0
Chain / Crank / Pedal problem? help please
So basically this started happening when i took my rear wheel off to change it. I noticed it while track standing the crankarms / pedals felt wobbly and noticed that they did move while my back wheel was stationary. Is this a chain tension problem? if so how can I fix this thanks
https://www.youtube.com/watch?v=gn0LrcgW4o4
https://www.youtube.com/watch?v=gn0LrcgW4o4
#5
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
Not to sound condescending or anything (that's timebandit's job) but I can't believe you bothered to make a video of this and post it on YouTube. It's obvious your chain is loose!
#8
this is how you fix this problem: remove the rear wheel. count how many links you have in your chain and then divide that number 1.56 and then add the number of spokes you have in the rear wheel to the total. Use this number to reach the proper chain tension -- this is called your "fixie gain ratio". See Sheldon Brown's site -- he has a chart that lists various fixie gain ratios and their correspondent measurements of how far back an axle should sit in the rear drop outs. When you put the rear wheel back on, be sure to slightly tilt the rear wheel toward the crank. This will make your pedaling much more efficient (which is also known as "go faster").
#11
no, i was talking about psirues advice.
always install your wheel as centered as possible. idk about the rest of his post, but it sounds like BS too. just install the ****ing wheel. you dont need math.
always install your wheel as centered as possible. idk about the rest of his post, but it sounds like BS too. just install the ****ing wheel. you dont need math.
#13
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
I'm still blown away by the fact that this dude took the time to make a damn video instead of simply pulling his wheel back. especially after removing and putting his wheel back in the first place. Was the physics of chain tension not obvious enough???
#17
Banned.
Joined: Jul 2006
Posts: 994
Likes: 1
From: philly




