Product ID: 333222385421

P-650b Mountain Bike Frame

Main view of The Ritchey P-650b Mountain Bike Frame
Item is discontinued and is no longer available
all about the

Ritchey P-650b Mountain Bike Frame

This is the second version of a 650b mountain bike from Ritchey -- Tom started to design his first in 1977. Even back then, Tom had a feeling that there was an advantage to the "middle" wheel size, but it took the rest of the cycling world three decades to figure it out: a 650b (or 27.5") wheel provides the bump-eating smoothness of a 29er, with the light, responsive feel of 26" wheels. Finally, the era of the 650b wheel is here.

The P-650b is a close relative to the P-29er. Up front there's the proprietary forged-and-machined, gram-shaving integrated head tube featured on all new Ritchey frames. Forged socket dropouts and new chainstay-mounted rear disc brake mount save a few more grams.
  • Uses IS42 headset
  • Front derailleur clamp 28.6mm
  • 68mm threaded shell
  • 4.47lbs for size medium 
questions about the

Ritchey P-650b Mountain Bike Frame

asked by: A Visitor
I really would like to know if you can put a 2.35 in back.
answered by: t.young
Ritchey doesn't specify anything about tire clearance. 2.1" will work, but anything beyond that may depend on rim width and tire width/pattern.
asked by: A Visitor
What are your fork recommendations for this frame?
answered by: t.young
It's designed for use with 100mm travel forks, so there are lots of options from RockShox or Fox that would work.
asked by: A Visitor
fattest 650b tire that fits in frame?
answered by: t.young
I know at least a 2.1 will fit, Ritchey doesn't specify what maximum width will work with this frame.
asked by: A Visitor
We need frame geometry, specifically, seat tube c-c and c-t, top tube c-c and stand over.
answered by: mlewis
You can find frame specs here:
asked by: A Visitor
how much to build me this bike?
with wcs ritchey parts, ritchey carbon fork.
answered by: mlewis
Prices for custom builds vary greatly depending on all the parts you choose. To discuss custom builds, please call us directly at 734.484.9999.
asked by: A Visitor
Does it come in any other colors? ;(
answered by: mlewis
No, this is the only color scheme for this one. It's not meant to be subtle!
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Ritchey P-650b Mountain Bike Frame

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specs for the

Ritchey P-650b Mountain Bike Frame

Frame Type:  
Cross Country
Rear Travel:  
Wheel Size:  
650b (27.5")

phone | 734.484.9999
address | 1866 whittaker rd.
ypsilanti, mi 48197
summer hours