Ritchey P-29er

[nathrix]

From the interwebs:

 

The return of the legendary Ritchey Mountain Bike. Tom Ritchey applied 38 years of racing, designing and building steel mountain bikes into a new model—the P-29er.

Like any Ritchey, this bike is born to go fast without sacrificing comfort or durability. Heat-treated, triple-butted Ritchey Logic II tubing in our own unique butting profiles results in a frame that balances rough trail compliance with sprint-winning stiffness.

 

The 29er-specific geometry was defined by the best way we know: countless hours of saddle time under Tom Ritchey and World Cup legend Thomas Frischknect and other racers. The result: nimble handling that captures the benefits of the big wheels, stable but not sluggish, equally at home on all-day epics or tight, technical singletrack race courses. The instantly-recognizable tri-color fade is a tribute to the classic Ritchey P-series racing mountain bike.

 

 

• The forged and machined integrated headtube uses standard 1 1/8" steer tubes and Ritchey drop-in headset bearings, but narrows to 32mm at the thinnest section—almost the size of a 1-inch steer tube. It’s a stronger design that allows for an 80 gram weight reduction over a traditional 1 1/8" steer tube design. It also makes for a stronger front triangle.

• The heat-treated downtube has a bend to accommodate fork crowns.

• Tange Slider dropouts. Gears? Singlespeed? Your call.

• SIZES: S (15"), M (17"), L (19"), XL (21").

• WEIGHT: 4.74lbs for frame/dropouts (Size: L)

• FORK: Designed for use with 100mm travel forks

[Wyatt Earp]

I want one off these so bad , brings back the days of racing with Thomas Frischknecht.

 

Thats it , my mind is know made up you can keep your Scotts ect these are the bikes . steel frames ride so well , i remember my Sunn steel frame bike was one of the best rides i ever had.

One large left, a small deposit secures.

The thing with this bike is that all us old school MTB okes will fall in love with this thing.

This and my Niner MCR

[AndreZA]

What's the benefit of a steel frame?

 

It looks like a bicycle, not a space ship.

[Iron]

For me its the best of all worlds , mixture of just stiff enough , just soft enough and just light enough to be frigin awesome . but you need the right steel frame and there not many out there anymore . if you are a old school racer from 15 odd years back you will understand and if you have raced a good renolds frame you will understand otherwise you have not lived.

[Iron]

One large left, a small deposit secures.

The thing with this bike is that all us old school MTB okes will fall in love with this thing.

This and my Niner MCR

 

PM sent

[Wyatt Earp]

PM sent

[nathrix]

What's the benefit of a steel frame?

 

You have some reading to do, dig in

 

http://en.wikipedia.org/wiki/Bicycle_frame

 

http://www.caree.org/bike101framematerials.htm

 

http://www.smartcycles.com/frame_materials.htm

 

How Stiff is your bike?

A comparison of stiffness (relative to steel) for various frame materials

http://www.caree.org/images/Bike101.gif

Edited September 12, 2011 by nathrix™ ® ©

[nathrix]

http://reynoldstechnology.biz/assets/img/gr_decal_853.png

 

SEAMLESS AIR-HARDENING HEAT-TREATED STEEL

 

The benefits of air-hardening steels are particularly noticeable in the weld area where, unlike conventional steel alloys, strength can actually increase after cooling in air immediately after welding. 853 is heat-treated to give high strength and damage resistance, and the steel properties allow thin walls to be used, so that lower weight but fatigue-resistant structures can be made.

 

Why it works:

 

UTS: 1250-1400 MPa, density 7.78 gm/cc

 

The chemistry includes carbon, manganese, chrome, molybdenum, silicon, copper.

 

The interaction between the alloys result in a fine grain structure that forms with air-cooling without the traditional "quenching" (fast cooling in water or oil) process. High strength from bainitic phase steel after a series of cold-working operations.

 

Heat-treatment to the 853 specification raises the yield strength for the entire tube, increasing dent and impact resistance.

 

Reynolds offer a design option from 2011 - 853 DZB for Double Zone butted tubes which are particularly suitable for ATB and 29er frames to reduce or eliminate the gussets normally required to pass the stringent EN fatigue testing standards.

 

Reynolds Cycle Technology

[Chubba]

You have some reading to do, dig in

 

http://en.wikipedia.org/wiki/Bicycle_frame

 

http://www.caree.org/bike101framematerials.htm

 

http://www.smartcycles.com/frame_materials.htm

 

Thanks, will read later.

[Thug]

I like!

[nathrix]

Thanks, will read later.

 

I know, allot of reading, but very interesting. My Niner is not called a MCR (Magic Carpet Ride) for nothing

[Eldron]

People, people - steel is heavy, can't be manipulated (hydroformed) like alu or built into any shape (like carbon). As an engineering material its bottom of the pile.

 

As a throw back to the past and a fun, floppy, comfy weekend bike its awesome but as a racing material it makes no sense at all.

 

Which explains why I giggle so much on my Niner MCR and a little less on my super light Giant XTC.

[Wyatt Earp]

S.I.R.

Yes steel is real.

[Lucky Luke.]

What's the benefit of a steel frame?

 

old skool cred no crumple zones

[nathrix]

People, people - steel is heavy, can't be manipulated (hydroformed) like alu or built into any shape (like carbon). As an engineering material its bottom of the pile.

 

As a throw back to the past and a fun, floppy, comfy weekend bike its awesome but as a racing material it makes no sense at all.

 

Which explains why I giggle so much on my Niner MCR and a little less on my super light Giant XTC.

Exa-ca-tilly silly, well said!

Edited September 12, 2011 by nathrix™ ® ©

[Iron]

People, people - steel is heavy, can't be manipulated (hydroformed) like alu or built into any shape (like carbon). As an engineering material its bottom of the pile.

 

As a throw back to the past and a fun, floppy, comfy weekend bike its awesome but as a racing material it makes no sense at all.

 

Which explains why I giggle so much on my Niner MCR and a little less on my super light Giant XTC.

 

Dude , how can you say that ! 2 of the best race bikes and had were steel .