Shimano Altus Hyperdrive C

[kruzer]

Hello! If I wanted to replace a chainring or two, am I right in thinking in this case I'd need a whole new crankset? An old Altus Hyperdrive C on a bike I've just acquired, with no apparent way of getting a chainring off....

 

[boxxer]

Yes, new crank required, you had to go to Altus C20 before you got replaceable rings back in the day

 

[legrandefromage]

https://bike.shimano.com/en-US/info...lls-and-repairs/fc-ct90-m920-mc12-cranks.html

 

[kruzer]

Oh la la - thanks, grandefromage. Thanks, also, boxxer! While I'm popping questions.... any idea what modern-day Shimano crankset would fit? It's an old '90s Marin Bolinas Ridge.....

 

[kruzer]

Wait, does a 1997 US recall still apply (in the UK)?