Hello Michael, Here is the table from the Rivendell site:
No. 2 fits tube gaps 42cm - 46cm No. 3 fits tube gaps 46cm - 52cm No. 4 fits tube gaps 50cm - 56cm Here is a link to the page. <http://www.rivbike.com/product-p/pu2.htm> My 52 Samuel Hillborne runs a legacy HPX (all black) that I purchased in 1986. I have no idea of the size. We ran throughout pumps in the store until we found one that fit the bike I had at the time. It has be repurposed for the Sam and fits under his top tube perfectly. My All Road D6 Rando has a new HPX No. 3. I used the chart and page. I do use pieces of used tire at the pump peg and the seat/top tube junction to snug the pump and protect the paint. That's just me; I am fussy like that. Best Regards, Tom On Saturday, January 18, 2014 5:08:50 PM UTC-8, Michael wrote: > > OK, so, thanks to the other thread asking about Riv riders and their > preferred pumps, I thought I would get one frame pump for now, just to get > on the road, and I will research the much more complex minis at leisure. > > Now, my Sam TT measurement of 51.5 (inside seat tube to inside head tube > measurement) puts me on either size 3 or size 4 according to RBW > description. > > Will one hold tighter than the other? > > I was thinking maybe the larger size would compress the spring more and > hold it tighter in the frame tubes? > I saw a demo on youtube and the pump the guy had on his bike was wiggly. > > Thanks for any advice. > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
