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Why does my rear wheel slip when climbing steep hills?

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Why does my rear wheel slip when climbing steep hills?

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Old 03-22-10, 08:22 PM
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Why does my rear wheel slip when climbing steep hills?

When I am out of the saddle with a fast group on a steep climb my rear wheel slips at times and I lose some traction. Why is that? I try not to lean too far forward but maybe that is my issue? I ride a TCR1 Giant if that matters.

Thanks
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Old 03-22-10, 08:24 PM
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You need to sit back a bit, it's all about weight on the rear wheel, but then again, it still might slip.
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Old 03-22-10, 08:25 PM
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You might want to look at some tires with more grip. What tires are you running and how old / many miles are on them?
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Old 03-22-10, 08:32 PM
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New bike or fork? I rod a traditional geo frame (straigth tt) then switched to a sloping tt with a straigh blade fork. First time I stood to sprint on the flats, I almost flew over the hb's. Had to adjust my standing postion to balance on the new style frame.

I think it was more the straigth balde fork vs the raked fork that made the difference, in my case.
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Old 03-22-10, 08:33 PM
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New tires. Michelin PRO 3s
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Old 03-22-10, 10:14 PM
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Old 03-22-10, 10:18 PM
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You need awd.
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Old 03-22-10, 10:19 PM
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Try to not be so jerky when you stand up? It happen when I first started "sprinting." The rear wheel would lose traction because it would jump.
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Old 03-22-10, 10:44 PM
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Originally Posted by patentcad
You need awd.
This gives me an idea. What if somehow you put another cassette on the front wheel, got a chain up there and made it so when you shift it... eh never-mind.
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Old 03-22-10, 10:46 PM
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Originally Posted by Caad 8
This gives me an idea. What if somehow you put another cassette on the front wheel, got a chain up there and made it so when you shift it... eh never-mind.
No, no,... you could make it work! You just have to run the chain through the head tube.....
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Old 03-22-10, 10:48 PM
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Overinflated tires. Creates a narrow (er) contact patch and allows the tire to bounce off road inperfections
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Old 03-22-10, 10:56 PM
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It could be because your power output is so awesome.......alternatively it could be because you suck as a bike rider, but I think this is much less likely.
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Old 03-22-10, 11:04 PM
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Didn't Jeep license an all wheel drive bike?
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Old 03-22-10, 11:05 PM
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Originally Posted by DevDel
Overinflated tires. Creates a narrow (er) contact patch and allows the tire to bounce off road inperfections
winning answer.

Originally Posted by Doohickie
No, no,... you could make it work! You just have to run the chain through the head tube.....
Originally Posted by Caad 8
This gives me an idea. What if somehow you put another cassette on the front wheel, got a chain up there and made it so when you shift it... eh never-mind.
no need to run a chain or another cassette at the front.
all you need is a 1:1 ratio hydraulic linkage to get the rear wheel to spin at the same speed as the front.

I imagine it's possible to do this by using disc brake mounts on both wheels, frame and fork.
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Old 03-22-10, 11:07 PM
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your dailing up too many WATTS!!!!!!!
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Old 03-22-10, 11:49 PM
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My rear wheel used to slip when I stood and climbed too hard initially, but my bike has pretty steep geometry. 74º HT, 30mm rake, 76º ST. I'm getting better at keeping it under control.
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Old 03-22-10, 11:51 PM
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Oh and I also want to include that I generally produce between 1600-1800 watts while I warm up, but my power meter shorts when I go flat-out, so I'm not sure of my upper limit.
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Old 03-23-10, 07:35 AM
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Originally Posted by snowman40
Didn't Jeep license an all wheel drive bike?
I was thinking the same thing. 10 years ago or so.
 
Old 03-23-10, 07:38 AM
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Originally Posted by racin jasin
your dailing up too many WATTS!!!!!!!
Yeah, your dailing!
 
Old 03-23-10, 07:56 AM
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Originally Posted by Mr. Beanz
New bike or fork? I rod a traditional geo frame (straigth tt) then switched to a sloping tt with a straigh blade fork. First time I stood to sprint on the flats, I almost flew over the hb's. Had to adjust my standing postion to balance on the new style frame.

I think it was more the straigth balde fork vs the raked fork that made the difference, in my case.
A straight blade fork has a rake, and it is probably about the same as your old fork. If you look closely, the blades come out of the crown at an angle. More likely you just weren't used the overall handling of the bike.
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Old 03-23-10, 08:05 AM
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When mountain biking, I try to bring my shoulders close to the bars on a slick climb, as opposed to trying to mate with the stem.
Tire pressure, as earlier mentioned, is also critical.
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Old 03-23-10, 08:12 AM
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The hills you climb are too steep and/or greasy.
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Old 03-23-10, 08:13 AM
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Are you prople all nuts or just sarcastic? Get your hips back over your seat. Problem solved. I think this was mentioned in the first reply.
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Old 03-23-10, 10:02 AM
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Originally Posted by Mr. Beanz
New bike or fork? I rod a traditional geo frame (straigth tt) then switched to a sloping tt with a straigh blade fork. First time I stood to sprint on the flats, I almost flew over the hb's. Had to adjust my standing postion to balance on the new style frame.

I think it was more the straigth balde fork vs the raked fork that made the difference, in my case.
Really?

Like...are you sure?
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Old 03-23-10, 10:04 AM
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Originally Posted by Roadierookie
New tires. Michelin PRO 3s
No.
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