GT Pro Series BMX Bike-Pro XXL-OS20-Black

The GT Bicycles 2015 Pro Series ProXXL OS20 features a light weight 6061-T6 aluminum frame along with 2pc chromoly cranks, sealed Euro bottom bracket, sealed bearing GT Mohawk hubs and 36H Alienation OS20 rims.

FRAME SPECS:
Toptube Length: 21.5"

RECOMMENDED RIDER HEIGHT:  6'+

FRAME: GT Pro Series BMX Race Design, 6061-T6 AL, Euro BB, Reverse Dropouts
HEADTUBE: 1-1/8" Integrated
BRAKE MOUNTING: V-Brake
SEAT CLAMP: 1 1/4"
FORK:  GT BMX Pro Race, 100% Cr-Mo 1-1/8" Steerer, Tapered 31.8-28.6mm Blades, 3/8" Dropouts
HANDLEBAR: GT Interceptor Chromoly
STEM: GT 100% Cold Forged 1-1/8" Machined GT Logo On Front Cap, 50mm Ext
GRIPS: GT DOHC Design 140mm
HEADSET: 1-1/8" Integrated Design, 45X45 Degree Sealed Bearings
BRAKE LEVER: Promax Xl-91 Mini V-Type AL 2 Finger Lever W/ Reach Adjust
CRANKS: GT Tubular Cr-Mo 2 Pcs, 19mm x 8T Splined Spindle, Recessed Axle Bolt
BOTTOM BRACKET: Euro Sealed Bearings
SPROCKET: 44T GT CNC AL Chain Wheel
PEDALS: GT Slim Profile large size platform, PP Material
FRONT HUB: GT Mohawk Design, Sealed Bearings, 3/8" Axle, w/ Allen Thread in Bolts, AL Washers
REAR HUB: GT Mohawk Flip/Flop Design, GT Logo, Low Flange, 2 x Sealed Bearings, 3/8" x AL Axle, w/ Allen Thread in Bolts, AL Washers
RIMS: Alienation OS20 36H F/R
TIRES:  (F) 20" x 1.85" Tioga Power Block OS, (R) 20" x 1.60" Tioga Power Block OS
FREEWHEEL: 16T
SEAT: SDG Patriot, I-Beam Kevlar w/Embossed GT Wing Graphic
SEAT POST: SDG I-Beam Micro adj. AL 6061, 27.2mm
SEAT POST CLAMP: GT Quick Release Integrated Internal Wedge
MISC: GT Chain Tensioners

NOTE: As with any complete bike, J&R Bicycles recommends that you have a professional bicycle store build your bike. Bikes ordered through mail-order come partially assembled and need to be inspected and assembled by a bicycle mechanic. Failure to do so may void the manufacture's warranty. Manufacture's warranties differ for every brand. You can check the brand's website for warranty information.