Having made one negative entry on this, let me add that on two points Jan is absolutely right.
I've been riding Grand Bois Cerf Green this summer and have found them to be outstanding - fast, comfortable and puncture resistant. Much nicer tire than either the Pasella or Ruffy Tuffy (I've never user the RP version.) He's also absolutely right about frame flex and planning. There is a sweet spot that synchronizes rider and bike. I will also grant that this spot is easier to hit with many traditional standard guage tubes than with some modern OS tubing, however the latter is quite possible. My Rambouilllet with OS tubing and my custom 1988 Marinoni stage racing frame (a bike with a world championship on its resume) offer amazingly similar rides. This is especially noticable in Vt's rolling countryside. OTH, I don't get the cold forged vs cnc argument. The only crank that has ever failed for me was a cold forged Sugino, and that after 25 years of use the whole rounded out. I would bet that when a crank does break it's almost always due to a mfg. defect. No process is ever 100% consistent and every process will produce some failures. CNC cranks and brakes are plenty strong enough to start and stop all my bikes for much longer than I will own them. Michael On Tuesday, August 7, 2012 3:06:27 AM UTC-4, Philip Williamson wrote: > > On Monday, August 6, 2012 5:16:03 PM UTC-7, z-man wrote: >> >> Not talking about a few centimeters. That's never even been suggested. >> I'm talking about 12 or 20 mm bigger. > > > I missed the antecedent for this. > > >> >> You're not going to determine what rolls faster by rolling down a hill >> and measuring with a stop watch. >> > > I can't think of another method to rank two rolly things *except* by > rolling them, timing the speeds, and comparing the results. > > Genuinely puzzled, > Philip > biketinker.com > >> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/BHvKIMWGbnUJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
