A black and purple Radio Xenon Pro XL Bike on a white background.

A black Radio Xenon Pro XL Bike with purple and white text and premium Radio Xenon components.

A close up of a race-winning Radio Xenon Pro XL Bike.

A black, disc brake-ready Radio Xenon Pro XL Bike seat.

A close up of a Radio Xenon Pro XL Bike wheel, disc brake ready.

A close up of a Radio Xenon Pro XL Bike wheel with a disc brake ready system.

Description

Building upon their ever increasing successes, the Radio Xenon range is solidifying itself as a trusted mid level complete race bike. The Radio Xenon Pro XL Bike (comes with an array of race winning components, including disc brake ready dropouts. The frame is manufactured from hydro-formed 6061-T6 alloy, with forks fully built from chromoly, from the steerer tube, to the fork legs. Sealed bottom bracket and hubs keep maintenance down to a minimum, while quality Radio Raceline and Promax components are fitted across the bike. Giving you the best possible winning combination.

The Pro and Pro XL Xenon bikes are the ideal entry level Pro bikes for the growing racer, with younger racers usually skipping sizes, going from a Expert bike to a Pro, or Expert XL to a Pro XL. The Xenon range provides you with the options to make this choice possible and to ensure your racer ends up on the correct size race rig.

Features

Longer 21.25" top tube. The XL front end and 14.8" rear give a taller racer room to move and stability at speed.
Alloy frame with tapered head tube. Hydroformed 6061-T6 with forged, disc brake ready dropouts and internal chain tensioners, paired with a full chromoly fork.
180mm 2-piece cranks. Cold forged and CNC machined Xenon Pro arms on a 24mm spindle turn a 44x16 gear through sealed external bearings.
Disc brake ready rear hub. The 36T sealed disc cassette hub and forged dropouts mean brakes and wheels can be upgraded later.
Radio Oxygen tyres on Argon Pro rims. A 1.75" front and 1.6" rear on 36H alloy rims give grip in the corners and speed down the straights.

Specifications

Size: 20 inch wheels, 21.25" top tube
Frame: Hydroformed 6061-T6 alloy, tapered head tube, forged and disc brake mount ready dropouts, internal chain tensioners
Top tube: 21.25"
Chainstay: 14.8"
Head tube angle: 74°
Seat tube angle: 71°
Bottom bracket height: 11.6"
Fork: Chromoly, 1-1/8" butted steerer tube, chromoly fork legs, 30mm offset
Headset: Radio Pro integrated, sealed, threadless, 1-1/8" to 1.5", including 1.5" to 1-1/8" fork crown race converter
Stem: Radio Xenon Pro topload, 53mm extension, cold forged and CNC alloy
Bars: 4130 chromoly, seamless, 8.1" rise, 28.25" width, 11° backsweep, 3.5° upsweep
Grips: Radio Xenon, diamond knurling, clamp on, 139mm
Brakes: Promax TX-131, alloy, rear
Brake lever: Promax XL-373, alloy, rear
Cranks: Radio Xenon Pro 2-piece, cold forged and CNC alloy, 180mm, 24mm spindle
Bottom bracket: Radio BSA 24, external bearing cups, CNC machined, sealed
Sprocket: Radio Xenon Pro, 44T, alloy
Chain: KMC Z6, 1/2" x 3/32"
Pedals: Radio Xenon slim, alloy
Front hub: Radio Xenon, CNC alloy, fully sealed, 36T, 3/8" chromoly axle
Rear hub: Radio Xenon, CNC alloy, fully sealed, 36T, disc brake cassette, 3/8" chromoly axle
Rear cog: Radio 16T, 1/2" x 3/32", sealed cassette driver
Rims: Radio Argon Pro, 36H, alloy, sleeved joint, front and rear
Tyres: Radio Oxygen, 20" x 1.75" front, 20" x 1.6" rear
Seat: Radio Xenon, pivotal, no padding
Seat post: Radio, 27.2mm, pivotal, alloy
Seat clamp: Radio Xenon, quick-release, alloy
Gearing: 44x16, 53.63" gear ratio

Assembly information

Your bike ships mostly assembled in the box. Finishing it takes most people 10 to 20 minutes with basic tools, and the video above walks through every step.

Fit the handlebars and line them up with the front wheel
Fit the front wheel, pedals and seat post
Check the brakes and tyre pressure before the first ride

Tools: Allen key set and a 15mm, 17mm or 19mm spanner for the pedals and axle nuts (bikes can vary between these three sizes). A socket is needed if installing pegs.

Rather have it done? Ask us about extra assembly before you order, or any local bike shop can finish the build for a small fee.

Radio Xenon Pro XL Bike

Name: Radio Xenon Pro XL Bike
Brand: Radio
SKU: RABK179-21-BLK
Price: 999.99 AUD
Availability: InStock

Brand: Radio SKU: Click to copy the SKU and show the pick location

$999.99 AUD

Or 4 payments of $249.99 AUD with

Recommended Rider Height:

165-180cm

Colour - Black/Purple

Top Tube Length - 21.25

Race frames are sized by class, and the class you ride is set by rider height rather than age.

Size	Rider height	Top tube
Micro (18" wheels)	Under 120cm	16.25"
Mini (20" wheels)	110 to 140cm	17 to 18"
Junior	120 to 150cm	18.25 to 18.75"
Expert	130 to 170cm	19.5 to 19.75"
Expert XL	145 to 170cm	20 to 20.75"
Pro	150 to 175cm	20.25 to 20.75"
Pro XL	165 to 180cm	21 to 21.25"
Pro XXL	170 to 185cm and up	21.5 to 21.85"
Pro XXXL	175cm and up	22"
Pro XXXXL	180cm and up	22.5"
Cruiser (24" wheels)	175cm and up	21.5" and up

Heights overlap between classes on purpose. Where you land in two, a growing rider is usually better on the larger, and a rider who wants the bike to turn faster on the smaller. Some brands label the Pro size Pro L, with the same fit.

How to measure

Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.

Between two sizes and still growing? Take the larger size.
Racing gates and wanting the bike to turn faster? Take the smaller size.
Top tube is the number that actually changes the fit, so compare it against the bike they ride now.

Not sure? Send us their height and we will tell you what we would put them on.

Read the full buying guide