#1
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Miter Sheet Translation ?
Looking at a custom BW and am torn about how it has a level bar drop with my usual saddle height and a short heat tube.
Can anyone generate a stack and reach based on this miter sheet ? I assume it’s to scale so CAD or something could accomplish this ? |
#2
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I use bikegeocalc.com for these tasks.
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#3
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I get a Reach of 359.6mm and a Stack of 509.4mm (based on the assumption of a 10mm lower headset stack). Effective top tube length 515.3mm
But someone should double check my numbers. |
#4
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Are you sure about the TT length? Wouldn't that 54.75 get longer, not shorter with a horizontal bar?
__________________
Colnagi Seven Sampson Hot Tubes LiteSpeed SpeshFatboy |
#5
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deleted, 448.5 dim is what I needed.
Last edited by donevwil; 02-16-2024 at 02:46 PM. |
#6
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If you print it out 100% portrait orientation it is almost exactly 1:100 scale. Incredible, or perhaps the program was designed as such. Either way I am impressed.
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#7
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ETT 555
Stack 565 Reach 387 This is to the top of the headtube and not the hypothetical headset cup ETA: Please see post #30, the drawing displays only the bare headtube with no measurements for estimated headset cup thickness. Last edited by spoonrobot; 02-15-2024 at 07:56 PM. |
#8
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Quote:
Crap! I got Stack calculation wrong, too! (But the reach should be right) Stack should be 547.5 x sine( 78 - 73 ) + 532.5mm x sine( 73 ) = 557.0mm Reach should be 547.5mm x cosine ( 78 - 73 ) - 532.5mm x cosine( 73 ) = 389.7mm Last edited by Mark McM; 02-15-2024 at 06:00 PM. |
#9
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Thanks everyone,
Maybe I’ll just average the results and hope for the best ? :0 Measurements from seller: TT: 54.5cm (CTC) ST: 51.5cm (but compact geo) CTC Crank to Saddle: 728mm w/ estimated level bars HT: 14cm Stem spacers: 20mm + 2.5mm on top Stem length: 90mm Chainstay: 430mm |
#10
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Well don't do that the numbers Mark McM gave you are way wrong
Measuring in high resolution with Gimp I get ETT 559 Stack 563 Reach 388 |
#11
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OK, just saw the 448.5 dim:
eff TT 559.6 Stack 581.8 Reach 381.7 (stack and reach being to the top center the HT) Last edited by donevwil; 02-16-2024 at 02:47 PM. Reason: corrected ETT |
#12
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I only have my cheapie travel calipers but they seem to agree with the pixels. Please excuse the parallax.
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#13
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You guys are the best.
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#14
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Quote:
Once. Seriously. ...this is why I'm a sales coach, not a rocket scientist.
__________________
Colnagi Seven Sampson Hot Tubes LiteSpeed SpeshFatboy |
#15
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The most important consideration for Breadwinners is; what livery? Some of the paint options are excellent and some are not so great.
I saw this specific bike in person and was taken aback by how good it looked IRL. |
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