Michael, I'm just now reading through the threads of this post. Given your comparison of crank lengths, pedals, and shoes in the referenced post, have you tried moving the clipless pedals to the Bleriot and using those shoes to ride in? Reason I ask that is because I've been shifting around from platform pedals/plain shoes to SPD pedals/MTB shoes to clipless LOOK-type pedals/shoes recently in order to try to address a chronic foot pain problem I've developed in the last 10 years or so. In the process of doing so (and I haven't ridden a clipless-type of pedal/shoe in about 5+ years or so) I've found that not only does my pedal stroke improve with feet attached on clipless, but I can feel my lower back muscles getting more into the down stroke, as well. With platform pedals I feel like I have the tendency to "slouch" more while riding and pedal along like an old fart (which, of course, I am). I had forgotten about the pedal stroke advantage of the clipless attached feeling, but have accidentally (maybe incidentally) rediscovered it. And yes, my lower back is less stiff and sore after a ride with the clipless pedals. All of this is contra-Grant for the most part, but it seems to be real.
On Wednesday, August 7, 2013 10:18:52 PM UTC-5, Michael wrote: > > OK. Here is a difference I found between the bikes: > > >> Sam and Bleriot have same saddle heights (saddle top-bb center), *but*: >> Sam cranks - *170mm*, MKS touring pedals with walking shoe (no back pain) >> Bleriot cranks - *172.5mm*, MKS touring pedals with same walking shoe >> (ouch) >> > Giant cranks - 172.5mm, but have used clipless much, much more than > Touring pedals on it. No pain. Clipless shoe also changes distance to pedal > since the sole/cleat is diferent thickness than walking shoe. > > So: > >> This makes the saddle top to pedals 2.5mm further on the Bleriot than the >> Sam. >> *Would this 2.5mm difference be enough to cause a low back pain problem?* >> I rode this way fine for a coupla months when I first got the Bleriot >> with no probs. It was after those first months that the back pain started. >> Maybe cumulative and the back started complaining and still does? >> > > *Should I drop the saddle 2.5mm?* > >> >> > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
