C
Casimir Mazik
Guest
I have a Marin San Anselmo Hybrid (24 spd) that I bought used two months ago. The front derailleur
has no identifying markings, but according to the Marin Website this bike should have a Shimano
Nexave T-400. The rear derailleur is marked Shimano 8515, but according to the website it should be
a Deore. I have checked the adjustments according to the Park tool website and everything is set
correctly. When I have the bike upsidedown (I don't have a workstand) and pedal and shift, it
shifts just fine. When I ride it, shifting from the middle sprocket to the smallest sprocket takes
about 4 cranks of the pedal. All other shifts are normal. The bottom bracket does not wobble, but I
do get the chain rubbing the derailleur cage sometimes when the rear derailleur is set to the
smaller outer sprocket when riding, not with the bike upsidedown. When I got the bike it had only
200 miles on the odometer. I have added 70 miles (average 15 mph) and this shifting problem has
been recent. My previous bike was a department store 10 spd which I remember had to have the front
derailleur cage spread open to prevent the chain rubbing. I hope I don't have to that with this
one. What should I try next?
has no identifying markings, but according to the Marin Website this bike should have a Shimano
Nexave T-400. The rear derailleur is marked Shimano 8515, but according to the website it should be
a Deore. I have checked the adjustments according to the Park tool website and everything is set
correctly. When I have the bike upsidedown (I don't have a workstand) and pedal and shift, it
shifts just fine. When I ride it, shifting from the middle sprocket to the smallest sprocket takes
about 4 cranks of the pedal. All other shifts are normal. The bottom bracket does not wobble, but I
do get the chain rubbing the derailleur cage sometimes when the rear derailleur is set to the
smaller outer sprocket when riding, not with the bike upsidedown. When I got the bike it had only
200 miles on the odometer. I have added 70 miles (average 15 mph) and this shifting problem has
been recent. My previous bike was a department store 10 spd which I remember had to have the front
derailleur cage spread open to prevent the chain rubbing. I hope I don't have to that with this
one. What should I try next?