- New product
New Comas Joy 18" trials bike with a 740mm aluminum frame for children up to 120cm tall. A bike perfect for getting started in bike trials with the quality you expect from Comas Trial.
Frame
- Made from high-quality 6061-T6 aluminum with optimized tubing. Ideal for riders up to 1.20m tall.
- Oversized sheaths provide a robust and reliable construction.
- Incorporates a transverse reinforcement bridge in the upper stays.
- High-precision, one-piece CNC-machined dropouts designed for use with eccentric-type turnbuckles.
Fork
- 18” trials fork for V-brakes with a 1-1/8” steerer tube
- Made from 6061-T6 aluminum with optimized thicknesses for improved strength.
- Oversized fork legs provide a robust and reliable construction.
- One-piece CNC-machined steerer tube for optimized stiffness.
- High-precision CNC-machined dropouts
- 100mm dropout spacing compatible with most front hubs on the market.
Wheels
- Front Hub: Comas Ultralight 100mm 28 spokes, 9mm threaded axle.
- Rear hub: Comas Ultralight 116mm, 32 spokes, 10mm threaded axle, 1.37x24T thread
- Front rim: Comas 18", 28 holes, single-wall, 32mm wide, lightweight
- Rear rim: Comas 18", 32 holes, single-wall, 47mm wide, lightweight
- Spokes: Comas Ultralight 1.8mm
- Spoke nipples: Aluminum
- Tires: 18"x2.20, symmetrical design, internal safety bead
- Brakes: 90mm aluminum V-brakes, 2-finger lever
Fingers
Drivetrain
- Crankset: Comas L130mm, 33mm offset, for threaded sprocket
- Bottom Bracket: JIS, CrMo, Sealed Bearings, L124.5mm
- Freewheel: Comas 30.6, 16 teeth, red
- Chain: YBN s20, 1/2x3/32”
- Fixed Sprocket: Comas 12T threaded, 7075-T6, 12mm wide
- Pedals: Comas Mono-Cage, Polymer, 9/16” thread
Headset
- Headset: Comas 1-1/8”, Ahead
- Stem: Comas 100mm, 25º rise
- Grips: Comas extra-thin foam, 2mm thick
- Handlebar: Comas 7075-T6 Aluminum, H105mm, L580mm
Geometry
- WD: 116mm
- BB: 68mm
- HT: 110mm
- WB: 738mm
- RC: 275mm
- BH: +25mm
- HA: 72º
- OFF: 45mm
Color
- Fluorescent Blue and Yellow with COMAS graphics.