Inspyre Evo Disk Junior 18.75"TT BMX Race Bike-Black

The Inspyre Evo Disk Junior 18.75"TT BMX Race Bike-Black is built for taller riders chasing next-level power and precision on the track. Centered around the lightweight 6061-T6 aluminum Evo Disk frame, it offers the ideal blend of stiffness, balance, and responsiveness for confident control through every straight and corner. With Forward Joyride cranks, Tioga Powerblock tires, and Inspyre Evo hubs, this setup delivers smooth speed and quick engagement when it matters most. The slick black finish and race-ready build make it a solid choice for riders focused on performance and podium results.

NOTE: As with any complete bike, J&R Bicycles recommends that you have a professional bicycle store build your bike. Bikes ordered through mail-order come partially assembled and need to be inspected and assembled by a bicycle mechanic. Failure to do so may void the manufacturer's warranty. Manufacturers’ warranties differ for every brand. You can check the brand's website for warranty information.

SPECIFICATIONS

• FRAME: Inspyre Evo Disk Junior, 18.75’’, Premium Alu 6061-T6, Hydroformed tubes, Triple butted, Swell forged 3D dropouts
• HEADSET: Semi Integrated, Sealed bearings, ZS44 | ZS44
• BB: Forward External BSA, Sealed bearings
• BARS: Inspyre Evo, Aluminum, 22.2mm, 4.25’’ x 22’’, BS: 7°, US: 2°
• FORK: Inspyre Evo, 100% Chromoly, 1-1/8’’ Steerer tubing, Tapered legs
• STEM: Forward, Top Load, Aluminum 6061-T6, 40mm
• GRIPS: Forward Lock On 95mm, Kraton
• SEAT: PC Combo, 22.2mm
• SEAT POST: Integrated with seat
• CRANKS: Forward Joyride AM, 2-piece, 4-bolt (104 BCD), 150mm
• CHAINRING: 4-bolt Aluminum, 38T
• PEDALS: Aluminum Mini 9/16
• FRONT HUB: Inspyre, Aluminum 28H, 10mm, 100% Sealed bearings, Female bolts
• REAR HUB: Inspyre, Aluminum Cassette 28H, 10mm, 100% Sealed bearings, 120 engagement points, 3-pawl system, Female bolts
• RIMS: Forward Joyride, Aluminum 28H, Double-wall
• TIRES: Front: Tioga Powerblock, 20x1-1/8’’, Rear: Tioga Powerblock, 20x1-1/8’’
• BRAKES: Alhonga Hydraulic with Alhonga Short Lever, Forward 140mm Disc
• CHAIN: KMC Z-1, 1/2’’ x 3/32’’
• COG: 16T, 1/2’’ x 3/32’’, Chromoly
• SPOKES: Stainless 14G
• NIPPLES: Brass 14G
• SEAT CLAMP: Forward AM, 25.4mm
• TENSIONERS: Integrated Swell Dropouts
• WEIGHT: 7.78kg