Part No.  


Part No.  37736
Fixie freestylers' demands are particular, and the P.Fix was put together by some of the best riders on the scene. The lighweight, tough double butted Reynolds 520 frame is lively, but tough, and the parts spec won't let you down - fixed/freewheel convertible hub, triple void alloy rims and custom parts created for real riders. Take that, hipster poseurs.
  • BMX-style, 3-piece tubular Cr-Mo crankset with cartridge-bearing MID BB is strong and light to go big with confidence, singlespeed 25t chainring resists bending and delivers the clearance you need
  • The Cr-Mo P.Series MTB Street handlebar is 720mm-wide for more leverage and precise handling
  • Press-in MID BB is lightweight, durable, and easy to service with sealed cartridge bearings and 48-spline spindle
  • Super-light and durable P.Series SL one-piece saddle/post combo offers both light weight and comfort
  • Lightweight NYLON plastic P.Series platform pedals and P.Fix retention straps keep you connected to the bike
  • One-piece, 10t cog is convertible between a fixed gear or freewheel setup
  • Butted, single-speed-specific, Reynolds 520 Cr-Mo frame with integrated headset, MID BB, and 3D-forged horizontal dropouts with integrated chain tensioner has perfectly dialed geos for fixed-gear freestyle
  • Ride dirt, park, or street on the Specialized Compound Street tires with low rolling resistance and a rounded profile
  • P. Series butted and taper blade Cr-Mo fork is light yet strong enough to handle heavy abuse
  • Lightweight 36-hole wheels with bolt-in female axle front hub and proprietary convertible fixed/freewheel, cartridge bearing, 14mm hollow axle to convert from fixed to freewheel

Technical Specifications

CHAIN KMC Z-510HX, 1/2"" x 1/8"", anti-drop inner links
BOTTOM BRACKET MID BB, 2x sealed cartridge bearing w/ 19mm, 48-spline Cr-Mo spindle, alloy tube and cone spacers
CRANKSET 3pc. tubular heat treated Cr-Mo, 48-spline, S: 165mm, 170mm, & 175mm
CASSETTE Singlespeed, convertible fixed/freewheel, CNC'd driver, 10t
CHAINRINGS 25t, Cr-Mo, for 48-spline
FORK 26"" FGFS, butted and tapered Cr-Mo blades, 1-1/8"" threadless, Cr-Mo dropouts for 3/8"" axle (disc mount for INT)
FRONT HUB Specialized P.Series BMX, female bolt-in, sealed cartridge bearings, alloy axle, 36h
REAR HUB Specialized P.Series P.Fix, Hi-Hi flange, convertible fixed/freewheel driver, sealed cartridge bearings, hollow axle, 36h
INNER TUBES Schraeder valve
SPOKES Stainless, 2.0mm (14g)
FRONT TIRE Specialized Compound Control, 26x2.2"", aramid bead, 60TPI
RIMS Specialized P.Series, 26"", alloy double-wall, triple void, 35mm, pin joint, 36h
REAR TIRE Specialized Compound Control, 26x2.2"", aramid bead, 60TPI
SADDLE Specialized P.Series 1pc co-molded composite saddle & alloy 25.4mm seat post combination w/ debossed ""P. Series"" logo padded cover
SEATPOST Alloy, no offset, 25.4mm, integrated w/ saddle
STEM Specialized P.Series BMX, forged alloy, top load, 52mm length, 22.2mm
HANDLEBARS Specialized P.Series MTB Street, heat-treated butted Cr-Mo, 720mm wide, 11º backsweep, 2º upsweep, 75mm rise
GRIPS Specialized P.Grip, flanged soft compound, end plugs, 150mm
BRAKE LEVERS Alloy, linear pull
REAR BRAKE U-brake, melt forged, single bushing, coil spring, 15mm offset arms, w/ 1pc. black pads and wide cable hanger
PEDALS Specialized P.Series NYLON platform w/ molded pins, loose ball, 9/16""
HEADSET Integrated 1-1/8"" threadless, Campy-style, full cartridge bearings
SEAT BINDER Integrated Cr-Mo bolt and nylock nut
FRAME Double butted Reynolds 520 Cr-Mo, FGFS geo, singlespeed-specific, integrated headset, MID BB shell, hydra-formed chainstays, removable U-brake bosses, 3D-forged horizontal dropouts w/ integrated chain tensioners


Geometry Chart

- Geometry

Stem Length 52mm 52mm 52mm
Crank Length 165mm 170mm 175mm
Seatpost Length 200mm 200mm 200mm
Handlebar Width 720mm 720mm 720mm
Reach 414mm 444mm 436mm
Stack 518mm 521mm 541mm
Chainstay Length 390mm 390mm 390mm
Bottom Bracket Drop -2mm -2mm -2mm
Seat Tube Angle 74.5° 74.5° 74.5°
Head Tube Angle 73° 74° 74°
Head Tube Length 135mm 135mm 155mm
Top Tube Length (Actual) 537mm 569mm 594mm
Fork Length 417mm 417mm 417mm
Seat Tube Length, Center to Top 443mm 453mm 483mm
Fork Offset 31mm 31mm 31mm
Standover Height 793mm 817mm 842mm
Wheel Base 995mm 1016mm 1040mm
Bottom Bracket Height 341mm 341mm 341mm