I'm fixing a mate's bike, he's got a shimano screw on 7 speed block on a claud butler trail ridge cheapo £200 MTB. The old rear mech is kanckered after 4 years of abuse, i told him to buy a new one so he bought a 2007 (non shadow) LX rear mech for 9 speed. This should work on his current drivetrain but i have a problem, it shifts beutifully through 6 of the gears but when it gets to the biggest sprocket, ie. 1 it just will not shift up, ive adjusted the L limit screw and it makes no difference, i can't understand why it wont shift up to gear 1, its almost as if the mech cant move any further, can anyone help me with this problem?
Carbon fibre, it's all nonsense. Drink beer. Ride a steel bike. Don't be a ponce.