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Whyte 403 2017

  • Whyte 403 mountain bike for younger / shorter riders
  • Trail MTB with 13 inch frame and 26 inch wheels
  • Hydraulic disc brake MTB for youths
Colour Size PriceAvailability 
Matt Lime/Denim/Black13"£625.00In Stock

Whyte 403

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

  • With its hydroformed alloy frame optimised for UK riding conditions and its progressive geometry (68˚ seat/74˚ head tube angle) to keep the rider centered and in control, the Whyte 403 boasts the key features we love about Whyte mountain bikes - see blog.
  • Its Shimano Altus transmission delivers a superb range of gears in a simplified 1-8 format via its 11-40 cassette, it's especially child-friendly single Shimano Revo 8-speed twist grip shifter, 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 Promax Solve hydraulic disc brakes. See our hydraulic disc brakes' blog.
  • Compared with a 24 inch wheel bike for younger riders, the Whyte 403's WTB 26x2.1 front / 26x1.95 inch rear tyre combo offers significantly improved traction, rollover and speed potential.

'We’ve broken the mould with our kids bikes. By putting 26” wheels on a kids MTB we’ve given a boost in performance similar to an adult switching to a 650b/27.5” Trail Hardtail. More confidence, more control and easier riding.

The 403 uses a REVO Shift so small hands can easily exploit the huge range of gears 11-40T.

The 403 also comes with Whyte’s own Get-a-Grip seat post clamping system. This easy to use clamp allows the post to be raised or lowered on the trail, even with small, cold hands'

Kids Bike Sizing Guide.


Buy your UK-designed Whyte mountain bike, road bike or commuter/hybrid from Edinburgh Bike Co-op instore. Interest free credit terms available.

See all Kids' Bikes from Whyte
See all products from Whyte
See all Kids' Bikes

Whyte 403 
Frame6061 Hydro Formed T6 Aluminium, multi butted, Get A Grip seat clamp system, BBX (bottom bracket exit) internal cable routing, Post Mount Chainstay Dropouts
ForkSunTour XCR, 100mm travel, 32mm, HYDRO lock-out, Air Spring, Adjustable Rebound, Post Mount
HeadsetFSA No.10, Semi Integrated
Rear HubAlloy, 4 Cartridge Sealed Bearing, 28 Hole, XD Driver
Front HubAlloy, Cup & Cone, Double Seal, 28 Hole
Spokes2.0mm, Black Stainless with Brass Nipples
RimsWTB SX-19, 28 Hole 26”
Front TyreWTB Bronson Race, 26” X 2.1"
Rear TyreWTB Riddler, 26” X 1.95"
Shift LeversShimano 8-Speed REVO Grip Shifter
Rear DerailleurShimano ALTUS
CassetteSunrace 8 Speed, ED Black 11-40T
ChainKMC 8 Speed
Crankset28T Narrow/Wide Chainring, 165mm Crank Length
Bottom BracketTH Sealed, Square Taper
SeatpostWhyte 20mm Offset, 30.9mm x 350mm
SaddleWhyte Custom
BarWhyte 30 degree rise DB, 31.8mm, 640mm Wide
StemWhyte Custom, 35mm
GripsWhyte Custom
Front BrakesPromax Solve, 160mm rotor
Rear BrakesPromax Solve, 160mm rotor
Brake LeversPromax Solve Short Reach
PedalsFibre reinforced Composite Platform

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.

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Q. I'm interested in purchasing the whyte 403 mountain bike for my 8 year old son. Would it be possible to purchase the bike with 24" wheels instead of the 26"?
A. All bikes are sold as specced so its not possible to supply it with 24” wheels.

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