padams10003
Likes Dirt
Seat tube angle (specifically making them steeper) seems to be the one of the manufacturers big selling point on bikes now. Is the whole basis of this a bit misleading?
Assuming that the saddle fore/aft position is set how it has traditionally been set (ie. Sitting on the bike, position one foot forwards so the crank is parallel to the floor at 3 o'clock. Hold a length of string with a weight on the end at the front of your knee. The string should drop down in line with the pedal axle.), then surely once the STA angle becomes too steep, then doesn't it reach a point where the saddle needs to be slammed back as far as possible?
Also, another thing that I think is often overlooked is that by moving the saddle back or forward you can effectively change the STA by a degree or two (depending on the bike). As an example, I have calculated on my bike (STA 73.5), by moving the saddle forward or back 20mm i can change the STA to between 72 and 75.
Looking forward to hearing what others think about this.
Assuming that the saddle fore/aft position is set how it has traditionally been set (ie. Sitting on the bike, position one foot forwards so the crank is parallel to the floor at 3 o'clock. Hold a length of string with a weight on the end at the front of your knee. The string should drop down in line with the pedal axle.), then surely once the STA angle becomes too steep, then doesn't it reach a point where the saddle needs to be slammed back as far as possible?
Also, another thing that I think is often overlooked is that by moving the saddle back or forward you can effectively change the STA by a degree or two (depending on the bike). As an example, I have calculated on my bike (STA 73.5), by moving the saddle forward or back 20mm i can change the STA to between 72 and 75.
Looking forward to hearing what others think about this.