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Old 02-25-2020, 11:16 AM
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cmg cmg is offline
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another question on reach,

so after reading the threads on reach here's another question. The photos are of 2 custom bikes and a stock production Lynsky 360. The goal has been to get the reach to be as close to 360 or slightly under it. Best fit , hand drop to bars easly. The Kish has a seatube angle of 73 and top tube length of 52 (effective), bb drop 8cm, reach is slightly longer than 360, around 365. the lynsky has a STA of 74.5 and TT length of 50.5, bb drop 7cm. reach is at 360. Meech has a STA of 73.5, TT length of 51.5 (effective), bb drop of 8cm. reach is slightly less than 360 around 357-358. all head tubes are around 110mm +/- HTA is 72 with fork rake of 50 on the customs. Is there any advantage/difference between having a longer top tube slacker STA or having a shorter tt with a steeper STA if the reach stays the same? in theory the saddle is in the same place in relation to BB on all 3.
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File Type: jpg kish bike a-1 smallest pic.jpg (77.9 KB, 135 views)
File Type: jpg lynsky 20001 A small.jpg (101.5 KB, 134 views)
File Type: jpg meech smaller.jpg (74.5 KB, 135 views)
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Last edited by cmg; 02-25-2020 at 11:19 AM.
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Old 02-27-2020, 07:03 PM
amerikaner amerikaner is offline
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I think it would shift your weight distribution forward with a steeper STA and vice versa.
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Old 02-28-2020, 09:02 AM
giordana93 giordana93 is offline
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Quote:
Originally Posted by amerikaner View Post
I think it would shift your weight distribution forward with a steeper STA and vice versa.
no, because you push the saddle back on the rails to compensate.

that's why you want to duplicate your saddle setback number then measure "reach" by checking distance from saddle tip to bars. note also that a slacker sta requires a longer top tube to get the same effective top tube because its starting point is further back. if you measured from the point where a plumb from the saddle tip intersected the TT, the reach forward of that would be the same. Thus the answer to this question

Quote:
Is there any advantage/difference between having a longer top tube slacker STA or having a shorter tt with a steeper STA
is no

ps this has been hashed and rehashed in the past, with the additional variable of stem length thrown in every once in a while. I recall (after a quick search) that OP has small frames. I would guess the new bike with 73.5 will work well, since it is between the other two and saddle rails are pushed back for the steeper sta and forward for the slack one. maybe this will be the Goldilocks just right
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