Hi all, I’m building up this Raleigh USA Grand Prix as a commuter and I was wondering if I could use a Microshift H09 11-32 9-speed cassette with the original rear derailleur and downtube shifters (friction). Gonna be using a Mavic Aksum wheelset from my parts bin so it can accommodate the 9-speed cassette.
poopybuttguye on
That is a beautiful derailiuer
walton_jonez on
What’s on the crank? I don’t know much about those derailleurs. But I do know that freewheels in that era were often not speced with 32t sprockets. Might be difficult to get the guide wheel low enough. And if you have more than one chain ring, I’d assume that this would exceed the capacity of the rear derailleur
Figuurzager on
Don’t know the answer but are you sure that wheel is seated properly in the dropouts?
semyorka7 on
max cog 28T on these. also only about 28T of chain wrap capacity: with an 11-28 cassette (17T difference), you’ve only got 11T left to play with for the front chainrings. in another comment you state that you want to use a 42/26 double, which is another 16T. This derailleur almost certainly does not have the capacity to run a 42/26 x 11-28 setup without the chain going slack midway up the cassette when you’re in the small chainring.
5 Comments
Hi all, I’m building up this Raleigh USA Grand Prix as a commuter and I was wondering if I could use a Microshift H09 11-32 9-speed cassette with the original rear derailleur and downtube shifters (friction). Gonna be using a Mavic Aksum wheelset from my parts bin so it can accommodate the 9-speed cassette.
That is a beautiful derailiuer
What’s on the crank? I don’t know much about those derailleurs. But I do know that freewheels in that era were often not speced with 32t sprockets. Might be difficult to get the guide wheel low enough. And if you have more than one chain ring, I’d assume that this would exceed the capacity of the rear derailleur
Don’t know the answer but are you sure that wheel is seated properly in the dropouts?
max cog 28T on these. also only about 28T of chain wrap capacity: with an 11-28 cassette (17T difference), you’ve only got 11T left to play with for the front chainrings. in another comment you state that you want to use a 42/26 double, which is another 16T. This derailleur almost certainly does not have the capacity to run a 42/26 x 11-28 setup without the chain going slack midway up the cassette when you’re in the small chainring.