The Quartz Frame is a 2 time World Championship winning super light alloy race frame. Taking the track proven. Helium Frame as a base, Radio upgraded the frame to use their new Paradigm 6061-T6 hydroformed superior tubing to shed a considerable amount of weight compared to the Helium Frame. The Quartz also uses a forged dropout design which allowes it to be fully disc brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy, Paradigm tubing TOP TUBE LENGTH: 21.75” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Built in chain tensioners Disc brake mounts
The Quartz Frame is a 2 time World Championship winning super light alloy race frame. Taking the track proven. Helium Frame as a base, Radio upgraded the frame to use their new Paradigm 6061-T6 hydroformed superior tubing to shed a considerable amount of weight compared to the Helium Frame. The Quartz also uses a forged dropout design which allowes it to be fully disc brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy, Paradigm tubing TOP TUBE LENGTH: 22.25” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Built in chain tensioners Disc brake mounts
The Quartz Frame is a 2 time World Championship winning super light alloy race frame. Taking the track proven. Helium Frame as a base, Radio upgraded the frame to use their new Paradigm 6061-T6 hydroformed superior tubing to shed a considerable amount of weight compared to the Helium Frame. The Quartz also uses a forged dropout design which allowes it to be fully disc brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy, Paradigm tubing TOP TUBE LENGTH: 22.5” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 15.2” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Built in chain tensioners Disc brake mounts
Stay Strong's V3 Frame doesn't borrow a single tube from the V1 or V2 models, instead utilising a new tube style that increases stiffness while reducing weight right across the frame. The updated frame features triple butted down and top tube with double butted chain and seat stays that add strength without adding weight. These Pro sized frames feature a tapered 1.5" head tube, press fit bottom bracket (PF30), 20mm rear dropouts with 10mm and 15mm adapters and built in chain tensioners included. The V3 is a disc ready frame with a disc brake hanger adapter available (sold separately) without that adapter the frame can be run with conventional V-Brakes with its shaved and hidden mounts. A 31.6mm seat post which reduces weight whilst helping to improve stiffness. Smooth welds across the frame help give the V3 Pro Frame a much cleaner look. This low, triangular shaped frame has a modern look with overall balanced stiffness, combined with the weight saving the V3 frame will help you reach your racing goals. *This frame in Pro size up to Cruiser requires a 34.9mm Seatpost Clamp & 31.6mm Seatpost. BRAND NEW DISC READY CLOSED DROPOUT SYSTEM (CLOSED DROPOUT SYSTEM ON PRO SIZES ONLY - DISC ADAPTOR SUPPLIED SEPARATELY) ###section### Product Specs MATERIAL: Aluminium TOP TUBE LENGTH: 21.75" HEAD TUBE ANGLE: 74 SEAT TUBE ANGLE: 72 CHAIN STAY LENGTH: 14.8" - 15.6" BB HEIGHT: 292.1mm WHEEL SIZE: 20 x 1.75" STANDOVER HEIGHT: DROPOUT SIZE: 10mm / 15mm / 20mm HEADSET TYPE: 1 1/8" - 1.5" BB TYPE: PF30 SEAT TUBE DIAMETER: 31.6mm BRAKE MOUNTS: V-Brakes WEIGHT: 1617g / 3.56lb ###section### Product Highlights
###section### Product Specs MATERIAL: Aluminium TOP TUBE LENGTH: 22.25" HEAD TUBE ANGLE: 74 SEAT TUBE ANGLE: 72 CHAIN STAY LENGTH: 14.9" - 15.7" BB HEIGHT: 292.1mm WHEEL SIZE: 20 x 1.75" STANDOVER HEIGHT: DROPOUT SIZE: 10mm / 15mm / 20mm HEADSET TYPE: 1 1/8" - 1.5" BB TYPE: PF30 SEAT TUBE DIAMETER: 31.6mm BRAKE MOUNTS: V-Brakes WEIGHT: 1628g / 3.58lb ###section### Product Highlights
Tested on the track and designed in conjunction with a team with BMX race knowledge spanning 3 decades, Radio Helium frames are well thought out and powerful pure bred race machines. You’ll find no gimmicks, no “goofy” tubing shapes or unnecessary features. These frames have been built from the ground up with race proven geometry and technology combined with clean, functional aesthetics designed to give you the holeshot out of the gate. Radio Helium frames are designed to feel comfortable, stiff and fast, exactly how a race bike should. ###section### Product Specs MATERIAL: Hydroformed 6061-T6 alloy - 22.25" Top Tube TOP TUBE LENGTH: 22.25" HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8" BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 10mm HEADSET TYPE: 1-1/8" - 1.5" tapered BB TYPE: Euro BRAKE MOUNTS: Welded WEIGHT: 1.905kg / 4.20lbs ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Hydroformed tubing for increased strength Integrated seat post clamp
Tested on the track and designed in conjunction with a team with BMX race knowledge spanning 3 decades, Radio Helium frames are well thought out and powerful pure bred race machines. You’ll find no gimmicks, no “goofy” tubing shapes or unnecessary features. These frames have been built from the ground up with race proven geometry and technology combined with clean, functional aesthetics designed to give you the holeshot out of the gate. Radio Helium frames are designed to feel comfortable, stiff and fast, exactly how a race bike should. ###section### Product Specs MATERIAL: Hydroformed 6061-T6 alloy - 22.5" Top Tube TOP TUBE LENGTH: 22.5" HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 15.2" BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 10mm HEADSET TYPE: Integrated BB TYPE: Euro BRAKE MOUNTS: Welded WEIGHT: 1.905kg / 4.20lbs ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Hydroformed tubing for increased strength Integrated seat post clamp
Tested on the track and designed in conjunction with a team with BMX race knowledge spanning 3 decades, Radio Helium frames are well thought out and powerful pure bred race machines. You’ll find no gimmicks, no “goofy” tubing shapes or unnecessary features. These frames have been built from the ground up with race proven geometry and technology combined with clean, functional aesthetics designed to give you the holeshot out of the gate. Radio Helium frames are designed to feel comfortable, stiff and fast, exactly how a race bike should. ###section### Product Specs MATERIAL: Hydroformed 6061-T6 alloy - 21.75" Top Tube TOP TUBE LENGTH: 21.75" HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8" BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 10mm HEADSET TYPE: Integrated BB TYPE: Euro BRAKE MOUNTS: Welded WEIGHT: 1.870kg / 4.12lbs ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Strong and lightweight Hydroformed tubing for increased strength Integrated seat post clamp
The Radio Helium frames took the race world by storm when originally . With multiple world championship wins, the Helium frame is now a common sight on tracks across the globe. Radio's flagship frame now uses their own unique forged dropout design which allows it to be fully disc-brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy TOP TUBE LENGTH: 21.75” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Hydroformed tubing for increased strength Built in chain tensioners Disc brake mounts
The Radio Helium frames took the race world by storm when originally . With multiple world championship wins, the Helium frame is now a common sight on tracks across the globe. Radio's flagship frame now uses their own unique forged dropout design which allows it to be fully disc-brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy TOP TUBE LENGTH: 22.25” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14.8” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Hydroformed tubing for increased strength Built in chain tensioners Disc brake mounts
The Radio Helium frames took the race world by storm when originally . With multiple world championship wins, the Helium frame is now a common sight on tracks across the globe. Radio's flagship frame now uses their own unique forged dropout design which allows it to be fully disc-brake compatible when used with the Helium disc brake mount. ###section### Product Specs MATERIAL: Hydroformed 6061 alloy TOP TUBE LENGTH: 22.5” HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 15.2” BB HEIGHT: 11.6" WHEEL SIZE: 20" STANDOVER HEIGHT: TBC DROPOUT SIZE: 20mm HEADSET TYPE: Integrated tapered 1-1/8” – 1.5” BB TYPE: Euro SEAT TUBE DIAMETER: 27.2mm BRAKE MOUNTS: V-Brake WEIGHT: TBC ###section### Product Highlights BMX Racing Specific Geometry Race Specific Frame Hydroformed tubing for increased strength Built in chain tensioners Disc brake mounts
Subrosa Tiro XXL BMX BikeSubrosa has engineered Tiro XXL to be ideal for taller riders and gives more space to move around when on the ground and in the air. It features a 21.3" top tube and is armed with the same superb component build as the other bikes in the Tiro range. A Hi-Ten steel frame ensures you have robust and dependable performance and is equipped with superb components from Shadow Conspiracy and Rant gives. Plus, this larger frame retains the agile and responsive geometry found on the smaller frame sizes, ensuring consistent performance for street riding, skatepark sessions and dirt jumping.Durable, Agile and Stylish Freestyle BMX BikesThe Subrosa Tiro line has grown bigger and better than ever with even more size and colour options! Investing in a bike is a big deal, so Subrosa want to make sure you get a bike that fits your needs perfectly. The Tiro, Tiro L, Tiro XL, and Tiro XXL, all feature the same great parts package, but each model has a different length Top Tube. The keys to a great riding experience are a bike that fits you and is durable to handle the abuse that BMX riding can dish and the Tiro line does both!Features: Frame Material: 100% 1020 Hi-ten Toptube: 21.3" Chainstay: 13.2" Headtube: 75° Seat Tube: 71° Standover: 8.5" Bb Height: 11.6" Brake Mounts: Welded Forks: Chromoly Steer Tube 30mm Offset Tapered Legs Bars: 100% 1020 Hi-ten 2pc 9.0" Grips: Shadow Ol Dirty Bar Ends: Shadow Nylon Head Set: Rant Bang Ur Intergrated Stem: Rant Trill Top Load Front Rim: Rant Squad 36h Alloy Single Wall Rear Rim: Rant Squad 36h Alloy Single Wall Front Hub: 3/8" Loose Alloy Rear Hub: 14mm Sealed Cassette Front Tyre: Rant Squad 2.35" Rear Tyre: Rant Squad 2.35" Cranks: Chromoly 8 Spline 3pc 170mm Bottom Bracket: Sealed Mid Sprocket: Subrosa Petal Steel Gearing: 44464 Chain: Rant Max 410 Pedals: Rant Trill Plastic Seat: Subrosa Mid 1pc Combo Post: Alloy 150mm Seat Post Clamp: Shadow Alfred Brake Lever: Alloy 2 Finger Brake Cable: Linear Brakes: Rant Spring Brakes V2 Weight Kg: 12.3 Kg Weight Lbs: 26.9 Lbs Please note: this bike is for use on BMX tracks and skate parks. In many countries, it is illegal to use this bike on public roads without using the two independent braking systems provided (a front and rear brake).Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.Buy Subrosa Bikes from Chain Reaction Cycles, the World's Largest Online Bike Store.