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Speed Series Pro XL

Speed Series Pro XL

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Get your head in the game and your mind on the track with the GT Speed Series BMX bikes and frames. The lightest aluminum race frame on the market features a race-ready geometry and quick-change dropouts so you are prepared for every condition the day throws your way

Additional Information

Sizes XS, S, M, L
Model Code G47108MXL
Frame GT Speed Series MK7 Elite Race Design, 6061-T6 AL, Alloy Formed and Butted Speed Metal Tubes, AL CNC/Forged Quick Change Dropout System, BB86, Taper 1-1/8" to 1-1/2" Integrated H/T
Fork BOX "X5" Pro Carbon 20mm Forks
Chain KMC Z610HX
Crank GT Forged Alloy 2-Piece, 180mm Arms, 24mm Hollow Alloy Spindle, 44T AL CNC Chain Ring, AL Chain Ring Bolts
Bottom Bracket BB86 Sealed Bearings
Pedals GT Low Profile FS Platform Design, PP Material, Boron Axle
Rims Speed Series Aero Double Wall, 36 Hole (F/R)
Wheels Tires (F) Tioga Power Band 20x1.85" (R) Tioga Power Block 20x1.75"
Front Hub Front: GT Speed Series, Alloy CNC body, Sealed Bearings, 36 Hole, w/ 20mm AL Thru Axle Rear: GT Speed Series Cassette, Alloy CNC body, 36H, 4 Sealed Bearings, 6 pawl 72point Alloy Shimano Cassette, 3/8" Female Allen Bolts w/ AL Washers
Wheels Spokes 14G
Brakes Rear: Promax Cold Forged Arms w/ 31mm Brake Pad adj, 108mm Arms V-Brake
Rear Brake Rear: Promax Cold Forged Arms w/ 31mm Brake Pad adj, 108mm Arms V-Brake
Brake Levers Promax V-Point Click Lever AL 2 Finger Lever W/ Reach Adjust
Handlebar GT Speed Cr-Mo 8.375"H x 29"W, 8? Back, 4? Up, Taper Cross Bar
Stem Promax Impact Top Load, 53mm Length
Grips GT Statement Double Lock-on Grips
Headset 1-1/8"-1.5" Taper Integrated Design, 45X45 Degree Sealed Bearings
Saddle BOX Echelon
Seat Post AL integrated w/ Saddle, 27.2 x 135mm
Seat Clamp PROMAX 412QX, Aluminum, 31.8mm Quick Release


Bike Geometry