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11x21 for hill training or am I fooling myself?(10 posts)

11x21 for hill training or am I fooling myself?sprocket rocket
Nov 12, 2002 10:55 AM
I normally run a 12-25 and landed a deal on a 11x21. I am considering using it on my mountain (up Juaquin Miller road for Oaklander's) which is average 9% grade for a few miles with very few level spots and no switchbacks.

I am going to blow my knees or will this make me a stronger cyclist? I have a pretty good fitness base and prefer mashing my pedals out of saddle for as long as I can take it.
If you have knee problems they should show up. (nm)Chen2
Nov 12, 2002 10:59 AM
re: 11x21 for hill training or am I fooling myself?Fez
Nov 12, 2002 11:08 AM
If you can stand for 5-10 minutes straight, then you are a pretty damn strong cyclist. Otherwise, attempting to sit and spin 100 rpm on a 21 tooth over a 9% grade sounds like a pretty ball-bustingly hard feat. You may want to bring duct tape to reattach the tibia to the femur.
Hope you get an equally good deal on a triple. nmdzrider
Nov 12, 2002 11:14 AM
pain = gain as far as im concernedcollinsc
Nov 12, 2002 11:42 AM
thats pretty much how I go about it. and I would say I am a more than respectable climber.

It is really REALLY easy to f*ck up your knees doing this tho, so try to ease up to it
What do you use now?mohair_chair
Nov 12, 2002 11:50 AM
You have a 12-25, but what cog do you actually use now to get up Joaquin Miller? If it's the 23, then you should be able to handle the 21 without too much concern. If you use the 25, going to a 21 is a big jump, and you are looking at some pain in the near future.
I have tried the 21 and have made it 80% of the way upsprocket rocket
Nov 12, 2002 6:28 PM
So I am figuring if I did not have a bail out gear I might have been able to make it -or have a heart attack. I just acquired a Hed Alps rear wheel so I will make it my hell training wheel while I will keep my comfy 25er on my other wheel.
re: 11x21 for hill training or am I fooling myself?Oneheart
Nov 12, 2002 11:53 AM
I ride in Tennessee (fairly hilly with some 7-8 mile climbs in the east) and have used a 12-27 in the past. This past season I changed to a 12-23 and find I climb the same climbs faster and was surprised to find my heart rate was the same as with the "easier" gearing... go figure. I've had no knee problems from it. Give it a try and see.
re: 11x21 for hill training or am I fooling myself?desmo
Nov 12, 2002 12:18 PM
which ever gets you up faster would be the right gear. if you're slower slogging up in the 21, and you're risking injury then why bother. I ride a 12x25 in a very hilly area. sometimes I use my 21, just to see if I can (and I can), but there's no way I'd give up my 23, and 25.
re: 11x21 for hill training or am I fooling myself?Scottland
Nov 12, 2002 12:50 PM
When I bought my first bike I had 11/21. Of course I had no idea about this "numbers" nor did I know what the word casette means. Nevertheless I climbed quite large hills here in Asheville NC with no problems. Now on my present bike I have 11/23 and it's the same. So I guess it depends.

BTW I don't think you can climb Grandfather mountain or Mt St Mitchell. For that you'll probably need 28 or 29.