Originally Posted by
AnthonyG
A very relaxed seat tube angle is just what a short person NEEDS in order to achieve KOPS. 99% of bikes built for small riders place them FAR in front of KOPS in fact most small riders have less saddle setback than the supposed minimum of 5 cm set by the UCI.
I ride with an effective seat tube angle of 69º just to achieve KOPS.
Anthony
No it's not. If you have short legs, a very relaxed ST angle will put you way
behind KOPS. Because of this fact, it appears you have had to compensate w/ teeny-weeny, unobtanium cranks to get the axle back under your metatarsal.
On my 75 degree ST frame, I achieve KOPS with the saddle exactly centred on the rails; On my 650b/slack angle bike, my knee falls a good inch behind KOPS, but I'm not about to go searching out 125mm cranks to "fix" that, and slamming the saddle forward creates other issues w/ cockpit.
As I've indicated, I'm not a KOPS acolyte (weight balance is much more important), so I could care less. It seems to me, you have just taken another set of conventions and followed them to an extreme.
But, if it works for you, that's all good.