GT Speed Series Pro - Nearly New - PRO XL (21.25" TT) 2021 - BMX Bike
The Speed Series Pro features our Speed Metal tubeset to keep the weight down while maintaining the stiffness wanted to take the hole shot. Equipped with disc brakes for fast stopping after the finish sprint and spec'd to give you the confidence to chase the top step out of the box.
- GT Pro Race Cr-Mo Fork with 1-1/8” Steerer Tube 20mm Dropout
- GT SpeedSeries Elite Race Frame with Speed Metal Tubes
- BB86 Bottom Bracket
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | GT Speed Series MK7 Elite Race Design, 6061-T6 AL, Alloy Formed and Butted Speed Metal Tubes, AL CNC/Forged Quick Change Disc Dropout SyStem, BB86, Taper 1-1/8" to 1-1/2" Integrated H/T |
| Fork | GT BMX Pro Race, 100% Cr-Mo 1 1/8" Steerer, Tapered Legs, 3/8" Dropouts |
| Headset | 1-1/8"-1.5" Taper Integrated Design, 45X45 Degree Sealed Bearings |
| Stem | Promax Impact Top Load, 53mm |
| Bars | GT Speed Cr-Mo 8.375"H x 29"W, 8° Sweep, 4° Up, Taper Cross Bar |
| Rear Brake | Promax Hydro Disc Rear, 140mm Rotor (Rear Only) |
| Brake Lever | Alloy, 2 Finger |
| Speed | 1 |
| Rims | Alloy Double Wall, 36h |
| Front Hub | GT Speed Series, Alloy CNC Body, Sealed Bearings, 28h, 3/8" Female Allen Bolts |
| Rear Hub | GT Speed Series Disc Cassette, Alloy CNC body, 4 Sealed Bearings, 6 Pawl 72point Alloy Shimano Cassette, 36h, 3/8" Female Allen Bolts w/ Alloy Washers |
| Spokes | Stainless Steel, 14g |
| Front Tyre | Kenda Kompact Pro Race 20 x 1.75" |
| Rear Tyre | Kenda Kompact Pro Race 20 x 1.75" |
| Seat Post | Integrated |
| Saddle | BOX Echelon |
| Chainset | GT Forged Alloy 2pc., 175mm Arms, 24mm Hollow/ Cr-Mo Spindle, 44T AL CNC Chain Ring, Alloy Chain Ring Bolts |
| Bottom Bracket | Sealed BB86 |
| Chain | KMC Z1 Narrow, 3/32" |
| Cassette | 16T Cog |
| Pedals | GT Low Profile FS Platform Design |
Typical Bike Size Chart
|
Height
|
Bike Size
|
Road Bike Size
|
Mountain Bike Size *
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
44 cm
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
48 cm
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
51 cm
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
54 cm
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
56 cm
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
58 cm
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
60 cm
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
62 cm
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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