Originally Posted by
rtz549
Took it for a ride as is with my
GPS. Comfortable cruising speed for me on this bike is 8mph all day long. Stepping it up to 10mph; not as pleasant pedaling experience. 12mph takes a lot more effort(faster pedaling more so then resistance). At 18mph I'm spinning the pedals. I can't break 20mph. Maybe I could with a stand up full on sprint; but I'm looking for constant cruising speed.
I wonder if this 15t cog would allow me to maintain 12mph as comfortably as 8mph is for me now?
I have about 1/2" of the dropout left. Will this 15t cog require me to remove links from the chain?
Amazing how life gets in the way.
I finally got it and got it installed. I need to go back to the original test spot to get more accurate comparison numbers. 9 mph is indeed what I get now instead of 8 mph. In regards to the 10 or 12 mph; I was seeing a lot of 14 mph. Also; I almost got to 22 mph. 21.8 mph. I think it's got more in it.
Also oddly; from the factory; it had a 3/32" cog on it and what appears to be a 1/8" chain. Did they go with the 3/32" because it was either cheaper, lighter, available, or they just didn't care? I think all of the above.
Also, when I undid the back axle; the chainstays spread apart about 1/4".
Factory cog and axle placement:
3/32" chain spacing:
New cog spacing:
1/8"? chain and 1/8" cog:
I think something with either the grease or ******er spring are acting up.
