Originally Posted by
mikiek
Doesn't a pedal extension accomplish the same thing? Extension screws into crank, pedal screws into extension 9/16" further out. I went with extensions after noticing my knees sticking out. That really helped in getting my foot under my knee.
I've got some Speedplay's on order. Whether or not it solves my problem, I believe they will be more comfortable in general.
In concept, yes. I'd question the 9/16" pedal extension - that's equal to the entire Speedplay adjustment range of all of their spindles from short to long and then some. Are you sure you're not talking about a 9/16"pedal thread size rather than the extension length. Most pedal extensions I've seen are even longer you can't really make them shorter than that. Kneesavers, if I recall, run 20mm to 30mm. Speedplays spindle lengths cover a span of 12mm (53mm to 65mm), if I recall. My guess is that if you have something like a kneesaver, you are looking at more like 20mm - which would be enormous and likely wrong (that's a huge amount).
There are lots of reasons for your knees being out - a primary one would be a seat that is too low. I guess I'd find it hard to believe you'd have to go to the full range and then some right out of the gate.
To judge this with respect to speedplay, I'd recommend you go to a speedplay dealer with their fit kit and have them do a pedal fit on you.
I do think that Q factor is overlooked for most riders and that evaluating that and adjusting it to each rider is a really smart thing to do.
J.