P.20 Grom
Part No.  

P.20 Grom

Part No.  
The "P' in "P.Bikes" doesn't stand for "Pretty". No fluff and no sparkly stuff. Just bombproof rides that mix advanced technology and top-shelf materials with geometry proven in the street, park and dirt. Start rolling right on the P.20 Grom, it's built for little rippers who are ready to take their riding to next level.
  • Steel frame for lightweight and durability for the toughest groms out there
  • BMX style U-Brake for confident powerful braking performance
  • P.Crank, 3 pc. BMX style crankset can hold up to the harshest abuse
  • Specialized closed end grips for comfort and safety
  • 20", alloy single wall rims for years of durable performance
  • No-nonsense alloy hubs for smooth rolling and worry-free performance
  • Specialized Rhythm Lite Sport tires offer traction across all surfaces

Technical Specifications

CHAIN KMC HV410, 1/2"" x 1/8""
BOTTOM BRACKET 8-spline, loose ball bearing
FREEWHEEL Odyssey, 13T
CRANKSET P.Crank, 3 pc. BMX style, 8-spline, 152mm
CHAINRINGS 30T, 1/2"" x 1/8""
FRONT HUB Alloy, 3/8"" axle, loose ball, dual lock nuts w/ 17mm contact side, nutted, 36h
REAR HUB Alloy, 14mm axle, 36h
INNER TUBES Standard Schrader valve
SPOKES Stainless, 14g, w/ brass nipple
FRONT TIRE Specialized Rhythm Lite, 30TPI, wire bead, 20x2.0""
RIMS 20"", alloy single wall, pin joint, 36h
REAR TIRE Specialized Rhythm Lite, 30TPI, wire bead, 20x2.0""
SADDLE P.Seat SL, padded, 1 pc. w/ co-molded alloy 25.4mm seatpost
STEM Die-cast alloy, 40mm clamp, black
HANDLEBARS Specialized P.Series BMX, steel, 11-degree backsweep, 2-degree upsweep, 168mm rise, 22.2mm
GRIPS Specialized, Kraton, closed end, 105mm
BRAKE LEVERS Tektro XL-320, U-brake, 15mm cable pull
REAR BRAKE Tektro, U-brake, alloy adjuster housing, 60mm 1 pc. pads, 95mm arms
PEDALS Composite platform, ball bearings, 9/16""
HEADSET Ahead, 1/8"" sealed cartridge bearings
FORK Hi-Ten steel, 1-1/8"" threadless steerer, 3/8"" axle dropouts
FRAME Hi-Ten steel, seatstay-mounted U-brake bosses, 5mm dropouts for 14mm axle


Geometry Chart

- Geometry

Crank Length 152mm
Stem Length 40mm
Seatpost Length 200mm
Handlebar Width 640mm
Reach 385mm
Stack 415mm
Bottom Bracket Drop 36mm
Chainstay Length 347mm
Seat Tube Angle 72°
Head Tube Angle 74.5°
Head Tube Length 110mm
Top Tube Length (Actual) 508mm
Fork Length 318mm
Fork Offset 26mm
Seat Tube Length, Center to Top 235mm
Standover Height 558mm
Wheel Base 872mm
Bottom Bracket Height 294mm