Highlights

  • Flat mount disc brake only
  • Internal cable routing
  • Sliding dropout disc system
  • 200g lighter than the Helium

Description

Radio haven't been sitting back and watching the competition catch up, they've kept their foot to the floor and just released the disc dedicated Quartz frame. Radio's Quartz range has some of the sharpest geometry in this competitive market and they are definitely one of the major players in the BMX race aftermarket frame game. 

With this update, they've ditched the V-brake mounts altogether a trend that the leading brands have adopted as the industry standard moves to disc brakes. Radio have chosen to go with a flat mount system with this frame, a system we really like here at LUXBMX for it's neat and compact design. It also tucks the calliper out of harms way from errant front wheels and pedals, helping ensure your chances of damage are minimised. 

Features

  • Flat mount disc brake only. The V-brake mounts are gone: a flat mount 120mm calliper sits neat and compact, tucked away from errant front wheels and pedals.
  • Internal cable routing. The brake line runs inside the frame, part of the disc specific build of this Quartz.
  • Sliding dropout disc system. Forged and CNC machined sliding dropouts with an integrated chain tensioner, for 10 and 15mm axles only.
  • 200g lighter than the Helium. Hydroformed 6061 alloy with Paradigm tubing makes this a super lightweight frame, so there is less to haul out of the gate.
  • Pro L race geometry. A 20.9" top tube, 13.9" minimum chain stay and 74° head angle on a frame with two world championship wins behind it.

Specifications

  • Sizes: Pro L
  • Top tube: 20.9" (530mm) actual
  • Chainstay: 13.9" (353mm) minimum
  • Head tube angle: 74°
  • Seat tube angle: 71°
  • Bottom bracket height: 11.6"
  • Bottom bracket: Euro, threaded, BSA 68mm
  • Material: Hydroformed 6061 alloy
  • Tubing: Paradigm
  • Dropouts: Sliding dropout disc system for 10 and 15mm axles, integrated chain tensioner
  • Brake mounts: Flat mount 120mm disc, not compatible with V-brakes
  • Cable routing: Internal
  • Head tube: Full integrated, tapered 1-1/8" to 1.5" (125mm)
  • Seat tube: 231mm, 27.2mm seat post
  • Axle size: 10 and 15mm only
  • Wheel size: 20 x 1.75"
  • Weight: 1.655g
  • Note: Rider area 532.6mm

Radio Raceline Quartz Disc Pro L Frame

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

Sale priceFrom

$899.99 AUD

Regular price$1,199.99 AUD

Or 4 payments of $224.99 AUD with

Colour - Matte Black

Top Tube Length - 20.9

BMX race bike sizing

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

SizeRider heightTop tube
Micro (18" wheels)Under 120cm16.25"
Mini (20" wheels)110 to 140cm17 to 18"
Junior120 to 150cm18.25 to 18.75"
Expert130 to 170cm19.5 to 19.75"
Expert XL145 to 170cm20 to 20.75"
Pro150 to 175cm20.25 to 20.75"
Pro XL165 to 180cm21 to 21.25"
Pro XXL170 to 185cm and up21.5 to 21.85"
Pro XXXL175cm and up22"
Pro XXXXL180cm and up22.5"
Cruiser (24" wheels)175cm and up21.5" 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.

BMX race bike sizing

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

SizeRider heightTop tube
Micro (18" wheels)Under 120cm16.25"
Mini (20" wheels)110 to 140cm17 to 18"
Junior120 to 150cm18.25 to 18.75"
Expert130 to 170cm19.5 to 19.75"
Expert XL145 to 170cm20 to 20.75"
Pro150 to 175cm20.25 to 20.75"
Pro XL165 to 180cm21 to 21.25"
Pro XXL170 to 185cm and up21.5 to 21.85"
Pro XXXL175cm and up22"
Pro XXXXL180cm and up22.5"
Cruiser (24" wheels)175cm and up21.5" 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.


Radio Raceline Quartz Disc Pro L Frame - Matte Black / 20.9

Discount 25%

Instead of $1,199.99

$899.99 AUD

Price match request

$12.99 flat-rate shipping Australia-wide

Express from $21.99

Free in-store pickup - Brisbane

Availability

20.9
Matte Black
Spectral Silver

● In stock at LUXBMX ● With supplier ● Preorder ○ Sold out

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