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New ratios in force.(3 posts)

New ratios in force.MichaelM
Jan 6, 2004 2:46 PM
I've just changed the 39 inner for a 38, and the cassette from 12-25 to 12-27. The realisation that this would happen came whilst struggling up an otherwise regular climb with a downhill headwind reducing me to 7/8 mph. All I need now is a 13 tooth bottom and a 16, and I think I'll have my gears sorted.

Tomorrow I'm going to the one and only hill that has had me off and pushing, followed by the steepest one I know of that I've ridden. And maybe a few more thrown in for good measure. If it's good, I'll be here tomorrow to tell, if not, I'll be sulking in the corner.

I can't wait, it feels like chritmas eve again!

Michael
re: New ratiosChen2
Jan 7, 2004 7:09 AM
I got my 13's with built in spacers and 16's from www.sheldonbrown.com. Some mountain bike cassettes have single 16's that can be used on a Shimano road cassette.
The standard 9-speed Shimano road cassettes with 16's are riveted to the 17, should be able to drill out the rivets.
~Al
Done it.......MichaelM
Jan 7, 2004 7:54 AM
Just back fom the ride, and managed to get up the hills ok, though on the steepest parts (that had previously forced me to walk), I glanced down at the cycle computer and noted that my cadence was down to 31, and I was riding at a grand 3.5 mph. I'm not sure of the gradient as it's not posted - it's on an unclassified road. The steepest marked climb was 12%, where I stayed in the saddle and set off at 60 rpm, which came down to 51 and stayed at that untill I was at the top.

I'll be seeing these hills quite often from now on, and hopefully my climbing will improve as a result.

Michael