#136
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. . . If everything outside the white box is of no concern, then stack and reach is perfect for you. |
#137
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You haven't been reading my posts about the importance of the STA. Stack, reach and STA will determine the fit. I also have my steering geometry preferences - more than 58mm of trail, which some brands think is appropriate for the smallest and largest frames. My current Cinelli Superstar disc is one of the best frames I've owned. I ride the smallest size with a 72-73cm saddle height and a 10cm saddle to bar drop. The 415mm stays are the longest I've ever owned.
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#138
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#139
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Agree with the point though, and it's the same with say a TT bike. You can't take your road fit and expect it to work on some other platform that has other demands and compromises. But again, this is edge case stuff. If you're a punter in a bike shop comparing a Specialized Tarmac with a Giant TCR with a Cervelo R-something with a Cannondale Supersix... Stack/reach is absolutely brilliant for that purpose. |
#140
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#141
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If everything outside the box is a concern, then Stack and Reach is also perfect for you. Stack and Reach is used to measure the basic frame "cockpit" size using he center of the BB shell as a reference point. Likewise, the other dimensions outside the box (saddle setback, chainstay length, front center, BB height, etc.) also use the center of the BB shell as their reference point. Stack and Reach is simply a more consistent frame measuring system.
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#142
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#143
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__________________
chasing waddy |
#144
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Having ridden and raced both for years, on the road bike my primary fit objective is power output, with handling being secondary. That’s not to say that handling isn’t very important; it’s just to say that as long as I can put out power comfortably, and handling is in the ballpark, I can make it work. Ideally, I’d optimize both. I have a lot more margin for error on the handling of the road bike, as a little more or less weight on the front wheel doesn’t mean I can’t get through turns at high speed, because traction on the road bike is more readily available than on dirt. On the mountain bike, it’s much more of a fine balance between the two, as it doesn’t really matter if I can sit at threshold comfortably for long periods of time if I keep blowing through returns at high speed because I can’t wait the front wheel enough, or I can’t make uphill switchback turns happen. |
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