Less weight on hands with LONGER reach?
I have a Surly Cross Check that I'm always messing with, changing bars--flats, drops, "alt" type bars w backsweep. It works a number of ways, it's a WIP. These bikes are known for their long top tube and short head tube and can be tricky to fit for some. I actually went down a frame size on mine from the first one I had. One phenomenon that seems really counter-intuitive is that when I extend my reach w different bars, I feel like I'm putting less weight on my hands. I suppose it's because I'm engaging my core more because I simply have to. The opposite is true with the alt flat bars w significant backsweep---they're fun and put me in a more upright, theoretically comfy position, but I end up kinda scrunched and leaning on my hands. This does not seem to be the case though with my other bike, where it's more what I'd expect - shorter reach, less weight on hands. Looking at the two bikes side-by-side, and measuring things, they're actually really close the way I've got them set up. Just something about the Cross Check frame....it's weird...
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I think many of us have found that out. It's much to do with You'll never know what you don't try. But like other things it's not the fix for everyone. Some of us it's worked for and other it doesn't. Too many other things that contribute to why it works or doesn't. Many of which we'll never know.
I feel too many get wrapped up in formulas and old adages and have issues just because they hold on to those things and never try different. We try to tell them, but they keep bringing up the formulas and stuff. |
Originally Posted by pbass
(Post 22137093)
I have a Surly Cross Check that I'm always messing with, changing bars--flats, drops, "alt" type bars w backsweep. It works a number of ways, it's a WIP. These bikes are known for their long top tube and short head tube and can be tricky to fit for some. I actually went down a frame size on mine from the first one I had. One phenomenon that seems really counter-intuitive is that when I extend my reach w different bars, I feel like I'm putting less weight on my hands. I suppose it's because I'm engaging my core more because I simply have to. The opposite is true with the alt flat bars w significant backsweep---they're fun and put me in a more upright, theoretically comfy position, but I end up kinda scrunched and leaning on my hands. This does not seem to be the case though with my other bike, where it's more what I'd expect - shorter reach, less weight on hands. Looking at the two bikes side-by-side, and measuring things, they're actually really close the way I've got them set up. Just something about the Cross Check frame....it's weird...
Note that I'm assuming we are trying to resist a constant torque. If in moving one's hands forward, one also leans more forward, or scoots more forward on the saddle, the force on the hands is not lessened by moving them forward. Thus first we get well balanced on the bike using saddle position at our comfortable hip angle and then select stem length for comfort. I suggest that the difference between the two bikes is saddle position w/r to the forward pedal, cranks horizontal, or possibly hip angle. |
Torque---yes indeed. I never really put it together, but for sure, when I "unweight" my hands, I'm applying more pressure to the pedals to create that torque in my bent-over body (along with engaging my core more and whatever I'm doing unconsciously on the saddle) to hold myself up.
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