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I realized that when I try to reduce the saddle length from a standard 270mm to 240mm (e.g. Specialized Romin to Power saddle for example), the saddle length adjusts by chopping the rear of the seat. But what if I want it to reduce the length from the front? IS his possible?.  I realized that by only chopping the rear of the sadddle, I cannot get the acutual saddle set-up (rail posiiton on the clamp) that exists on a bike I have measured. The Saddle setback should read 2-3cm less than what it actually does when the saddle is reduced only from the rear (the setback remains fixed on the original saddle length.

Hope you can help!

Thanks!

Patrick

If you reduce dimension L, you will also most likely want to reduce dimension A. Try this and let me know if you still have issues.

Thanks Brent I think that s

Thanks Brent I think that s it!

Hi guys, sorry been using

Hi guys, sorry been using Bike CAD for years but not so good at drawing new components for myself.... where are we measuring from for dimension A.... is it the mid rail position? i.e. middle of the parallel bit of the rails?