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Academy Trooper 20 BMX Bike Mint Polished (2021)

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Features

Perfect Ride Guarantee

Perfect Ride Guarantee
If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

Free Bike Build

Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.

First Free Service

First Free Service
Every bike come with a complimentary free service and safety check.

The Academy Trooper BMX is a dialled BMX bike with some new upgrades on the 2021 model. It now comes with a sealed mid bottom bracket and sealed hubs for a high quality ride. This bike is for somewhat smaller riders with a 19.5" top tube and 20x2.3" tyres. You still get the tough Hi-Ten steel frame, forks and 8.5" rise bars. The 3 Piece forged crankset is paired with a 25t sprocket for a reliable ride. As with most Academy bikes it is built to give you great value so that you can get the most out of every ride.

Features

  • Frame: Academy Trooper 20″ with 19.5” TT Hi-Ten
  • Forks: Academy BMX Trooper 20″ Hi-Ten tapered legs
  • Crankset: Academy 3pce Forged 8 Spline, 170mm
  • Handlebars: Academy 8.5″ rise 28″ wide Hi-Ten.
More Information
SKU ACXB21021C3
Season 2021
Size 20inch
Click & Collect Yes
Wheel Size 20"
Frame Material Steel
Fork Material Steel
Cassette Type Single Speed
Chainset Type Triple
Brake Type U-Brake
Bottom Bracket MID sealed 19mm
Brakes Alloy U-Brake
Brake Levers Alloy Composite
Cassette Academy 25T
Chain KMC
Crankset Academy Trooper 3 pce Forged 8 spline 19mm spindle 170mm length
Fork Academy Trooper, Hi-Ten, tapered legs
Frame Academy Trooper, Hi-Ten
Grips Academy Pro
Handlebar Academy Hi-Ten, 8.5" rise x 28.0" wide
Hubs Academy Alloy Cassette Sealed with 10mm axle 36 hole
Pedals Plastic
Rims Alloy single wall 36 hole
Saddle Academy Railed
Seatpost Academy Railed
Spokes Black
Tyres Family F2128 20 x 2.3"
Kids Bike Sizing 20 Inch
Top Tube Length 19.5
Top Tube Length 19.x"

BMX Bike Geometry Diagram

Legend

ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base

Size

20inch
Wheel Size 20"
Frame Size 20
TT Top Tube (in) 19.5
CS Chain Stay Length (in) 13.25
HTA Head Tube Angle (°) 75.2
STA Seat Tube Angle (°) 71.0
R Reach (mm) -
WB Wheel Base (mm) -

Academy

About Academy

Academy is like the little brother brand of Colony BMX. Making the best value bikes at the best prices available. Academy’s main aim is to get more riders into BMX which is of course, good for everyone. Academy BMX – Where BMX Begins.

View Academy Range

20" Freestyle BMX Sizing Chart

Rider's Height (cm)
140
145
150
155
160
165
170
175
180
185
190
195
19.5-20"
Top Tube
20-20.5"
Top Tube
20.5-21"
Top Tube
21+"
Top Tube

This is only an estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.