Performer 20.5 Kachinsky
The Performer is a solid intermediate model with a combination of reliable spec and affordability. Two top tube options (20.5 & 21) make this an ideal bike for both beginner and returning BMX riders.
- GT Pivotal Padded Saddle / Alloy Pivotal Post
- Sealed Alloy Front Hub/ Double Wall Rear Rim
- GT Power Series Cr-Mo 3pc. Cranks
Reliable spec for beginner to intermediate riders
Rolling on GT LP-5 tires, double wall rear wheel, and sealed front hub

GT Kachinsky Pivotal Saddle
Featuring a debossed Chicago train map and white marble accent panel.

Brian Kachinsky inspired color and Chicago graphics
Graphics are inspired by Brian’s love to travel and explore the cities of the world. Black is the color of asphalt and the yellow a mark of the best street spots

Frame
frame
100% Hi-Ten Steel Tubes, DT Gusset, Mid BB, Seat Stay U-Brake, Integrated 1-1/8" H/T, Removable Rotor Tabs
sizes available
20.5
fork
100% Hi-Ten, Tapered Legs, 31mm Offset
wheel size
20
Wheels
rims
Alloy Single Wall (F), Double Wall (R), 36h
front hub
Alloy Sealed 3/8" Axle
rear hub
Alloy Semi-Sealed 14mm Cassette
front tire
GT LP-5 2.35"
rear tire
GT LP-5 2.35"
spokes
Stainless Steel, 14g
Drivetrain
rear cogs
9T 1pc. Driver
chain
KMC S1
crank
GT Power Series 3pc Chromoly 170mm, 19mm x 8T Spindle, GT NBS 25T Steel Chainwheel
bottom bracket
Sealed Mid 19mm
pedals
GT Logo PC Platform
Cockpit
handlebar
GT 2pc Freestyle, 100% Hi-Ten Steel, 9"H x 29"W, 3°Up, 11° Back
stem
GT NBS Top Load 50mm, 32mm Rise
grips
GT Super Soft Flangeless
headset
1-1/8" Sealed Integrated (41.8 x 45)
seatpost
Alloy Pivotal, 25.4 x 200mm
saddle
GT Pivotal Padded
Brakes
brakes
NBS Alloy U-Brake w/ Soft Compound Pad
brake levers
NBS Alloy
Geometry
Sizes (in) | 20.5 |
---|---|
Top tube actual | 20.5 |
Head tube angle | 75° ° |
Seat tube angle | 71° ° |
Standover | 8.5 |
Head tube length | 4.5 |
Wheelbase | 35.41 |
Front center | 22.41 |
Chainstay length | 13 |
Bottom bracket height | 11.75 |
Seat post diameter | 1 |
Axel to crown | 12.6 |
Dropouts | 14mm |
Head tube type | Integrated |
Brake mounts | Welded |
Rider area | 22.16 |
Bottom bracket type | Mid |
Fork rake | 1.2 |
Axel to crown | 12.6 |
Fit Guide
- 12"
-
2'10" - 3'7"
- 14"
-
3'1" - 3'7"
- 16"
-
3'7" - 4'0"
- 18"
-
4'0" - 4'10"
- 20"
-
4'10" - 6'5"
- 24"
-
4'10" - 6'5"
- 26"
-
4'10" - 6'5"
- 29"
-
4'10" - 6'5"