Hello,
1st time checking a bracket since my old Townsend required use of a ball joint remover & hammer combo to bash off the cranks way back in the early 90's so I want to make sure I'm doing this right without damaging anything.
Reason for repair due to crank slipping when cycling up hills (& there's a lot of hills round here so this workhorse of a bike has been given quite a test the past 5yrs), the steeper the hill & the lower the gear = more slipping & high gears on slight rises at low speed also result in some slipping, my suspicion is that something in the bottom bracket has finally given up the ghost as chain, derailleurs & cables are all set correctly.
No idea how old the Topanga is precisely, but it's fitted with its original Shimano Altus A20 derailleur etc (+ presumably a BB-LP20 bottom bracket). There's an 8mm hex bolt either side of the crank, easy enough to remove, but I need a crank removal tool to get to the bottom bracket... it looks potentially quite rusty on the visible part of the bracket so who knows how easy this will be to remove.
If necessary the whole BB will be replaced but does anyone have any tips re: removal, what to be wary of, what to make sure is & is not done?
Thanks.
1st time checking a bracket since my old Townsend required use of a ball joint remover & hammer combo to bash off the cranks way back in the early 90's so I want to make sure I'm doing this right without damaging anything.
Reason for repair due to crank slipping when cycling up hills (& there's a lot of hills round here so this workhorse of a bike has been given quite a test the past 5yrs), the steeper the hill & the lower the gear = more slipping & high gears on slight rises at low speed also result in some slipping, my suspicion is that something in the bottom bracket has finally given up the ghost as chain, derailleurs & cables are all set correctly.
No idea how old the Topanga is precisely, but it's fitted with its original Shimano Altus A20 derailleur etc (+ presumably a BB-LP20 bottom bracket). There's an 8mm hex bolt either side of the crank, easy enough to remove, but I need a crank removal tool to get to the bottom bracket... it looks potentially quite rusty on the visible part of the bracket so who knows how easy this will be to remove.
If necessary the whole BB will be replaced but does anyone have any tips re: removal, what to be wary of, what to make sure is & is not done?
Thanks.