It was only a matter of time before Radio Raceline started to produce complete race bikes to shake up the traditional race bike market, The Radio Raceline Quartz Pro XL is the second size offered in the 3 bike Quartz range. With a Pro XL+ top tube length at 21.25 inches, this lightweight hydro-formed frame is spec'd with some very impressive parts like the Radio Solar carbon fork and hydraulic disc brakes. We've seen nothing for 2021 that comes even close to matching this race bike on both frame geometry design and materials utilzed. Add to that that Radio have nailed the colourway and graphics and we'll be lucky if any are left by the time you finish reading this description!
The vital stats are listed below, but make sure you click on the specification tab to drill down into what makes this bike unique in the sub $3000 race market. We've been building custom race bikes for a number of years now at LUXBMX, and we can hand on heart say, you wouldn't get anything near the level that this bike straight out of the box. Bolt on your clip pedals and tear out the fastest hill times you've ever done. The Radio Quartz is that good!
Key Specs:
TT Length: 21.25""
Wheel: 20""
BB Height: 11.6""
Crank Length: 180mm
Gearing: 44x16
Gear Ratio: 53.63""
Tyre Size: 20x1.75""
Weight: 9.00kg / 19.83lbs
FRAME / BAR GEOMETRY
TOP TUBE LENGTH - 21.25''
CHAIN STAY LENGTH - 14.85''
HEAD TUBE ANGLE - 74°
SEAT TUBE ANGLE - 71°
BOTTOM BRACKET HEIGHT - 11.6""
| Size | 21.25TT |
| Frame | Lightweight hydro formed 6061-T6 alloy frame, tapered head tube, forged dropouts, with int. chain tensioners |
| Fork | RADIO RACELINE ""SOLAR"" carbon fork, 1-1/8"" - 1.5"" tapered steerer, 32mm offset |
| Headset | RADIO RACELINE ""PRO"" integrated headset, sealed, threadless, 1-1/8"" - 1.5"" |
| Stem | RADIO RACELINE ""NEON PRO"" top loader stem, ext. 54mm, cnc machined, alloy |
| Handlebar | 4130 crmo bar, seamless Rise - 8"", Width - 28.5"", Backsweep - 6.5°, Upsweep - 2.5° |
| Grips | RADIO RACELINE ""XENON"" grips, diamond knurling, clamp on grip, 140mm length |
| Brake Lever | RADIO RACELINE 2 finger lever for hydraulic disc brakes |
| Rear Brake | RADIO RACELINE hydraulic disc brake, 120mm rotor, rear |
| Crank | RADIO RACELINE, Xenon Pro, 2pc crank, cold forged/cnc, alloy, 180mm length, 24mm spindle |
| Chainring | RADIO RACELINE ""XENON PRO"" sprocket, 44T, alloy |
| Bottom Bracket | RADIO RACELINE ""BSA24"" bb set, external bearing cups, cnc machined, sealed |
| Pedals | RADIO RACELINE ""XENON SLIM"" pedal, alloy |
| Chain | KMC ""Z6"" chain, 1/2"" x 3/32"" |
| Front Hub | RADIO RACELINE ""TURBINE"" front hub, alloy cnc, fully sealed, 36T, 3/8"" female crmo axle |
| Rear Hub | RADIO RACELINE ""TURBINE"" rear hub, alloy cnc, fully sealed, 36T, disc brake cassette, 3/8"" female crmo axle |
| Rear Cog | RADIO RACELINE driver, 16T, 1/2""- 3/32"", sealed cassette |
| Rim (F) | RADIO RACELINE ""ARGON PRO"" rim, flash welded, 36H, tubeless ready, alloy |
| Rim (R) | RADIO RACELINE ""ARGON PRO"" rim, flash welded, 36H, tubeless ready, alloy |
| Tyres | RADIO RACELINE ""OXYGEN"" TYREs, foldable, tubeless ready, front: 20"" x 1.95"" and rear: 20"" x 1.75"" |
| Seat | RADIO RACELINE ""XENON"" pivotal seat, no padding |
| Seat Clamp | RADIO RACELINE ""HELIUM PRO"" seat post, quick-release, alloy |
| Seat Post | RADIO RACELINE seat post, 27.2mm, alloy |
| Gearing / Ratio | 44x16 / 53.63"" |
