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Whyte 403 2020 Kid's Mountain Bike

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Product Details

Whyte 403 2020 - 13 Inch Frame Mountain Bike

The Whyte 403 is a mountain bike for young riders aged 8-12ish. Its 13 inch frame and 26 inch wheels also make the Whyte 403 perfect for shorter adults looking for a trail-ready mountain bike.

Special Offer

Reserve this bike (and get free storage until Christmas) for £10. Learn more >

Key Features

  • Hydroformed alloy frame made for an SCR (single chain ring) transmission, and optimised for UK riding conditions
  • Progressive frame geometry (68˚ seat/74˚ head tube angle) to keep the rider centered and in control
  • Shimano Altus transmission delivers a superb range of gears in a simplified 1x9 format via its 11-36 cassette, its single chainring (no double shifting required) and its single Shimano Altus gear mech
  • A chainstay-mounted chain tensioner and the narrow/wide chainring help eliminate any risk of unshipping the chain
  • Stopping power is equally impressive, thanks to the Whyte 403's Tektro M-275 hydraulic disc brakes
  • Compared with a 24 inch wheel bike for younger riders, the Whyte 403's WTB 26x2.25 front adventure rear tyre combo offers significantly improved traction, rollover and speed potential.

Whyte 403 Size Guide

One Size: Suitable for kids 4' 5" - 5' 0" (135 - 152m)

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Shop All Kids Bikes >

Shop Bikes For Ages 10 - 14 >

Shop Bikes For Ages 6 - 9 >

Sizing Guide for Kids Bikes >

Technical Specifications

Whyte 403 2020 Kid's Mountain Bike 
Frame6061 Alloy, Hydro Formed T6 Aluminium, Multi Butted, SCR, Get A Grip Seat Clamp System, Internal Cable Routing with BBX and Chainstay Post Mount Dropouts
ForkSR Suntour XCR, 100mm Travel, Hydro Lock-out, Air Spring, Adjustable Rebound, Post Mount
HeadsetFSA No.10, Semi Integrated, 1 1/8” Caged Bearings
Rear HubAlloy, Cup & Cone, Double Seal, 28 Hole
Front HubAlloy, Cup & Cone, Double Seal, 28 Hole
Spokes2.0mm, PG, Black Stainless, Brass Nipples
RimsWhyte Trail-403, 28 Hole
Front TyreWTB Trail Boss Comp 26” x 2.25”
Rear TyreWTB Trail Boss Comp 26” x 2.25”
Shift LeversShimano Altus SL-M2000, Trigger Shifter, 9 Speed
Rear DerailleurShimano Altus RD-M2000-SGS, 9 Speed
CassetteSunrace CSM90, ED Black 11-36, 9 Speed
ChainKMC 9 Speed
CranksetAlloy 6061, 28T Narrow wide Chainring, Single guard, 152mm Crank Length
Bottom BracketSquare Interface, Cartridge Bearings, 73mm
SeatpostWhyte 6061 Alloy, 15mm Offset, 30.9mm x 300mm, 2 Bolt Clamp
SaddleWhyte Jr Mid Custom
BarWhyte 6061 Alloy, 30mm Rise, 31.8mm, 640mm Wide
StemWhyte Alloy, 35mm Extension
GripsWhyte Lock-on V Grip
Front BrakesTektro M-275, Hydraulic, 160mm Rotor
Rear BrakesTektro HD-M275, Hydraulic, 160mm Rotor, Internal Routing
Brake LeversTektro HD-M275
PedalsFibre reinforced Composite Platform
Weight13.35kg / 2 stone, 1lb
This bike was weighed at our Aberdeen store on 21 September 2019. We weighed the complete bike as you would receive it.


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.