Sales Hotline
020 8460 4852


Whyte 403 V3

We’ve downsized everything except the performance so you can start them right with a Whyte.

Our 405 set a whole new standard for junior MTB performance and the new 403 makes the gift of a truly great kids bike more affordable.

A specific lightweight tubeset - not just sawn off versions of adult pipes - shrinks climbs and puts a tailwind into every ride. We’ve downsized our maximum confidence Trail geometry and fitted air sprung forks that properly work for lighter pilots so their rides are full of thrills not spills. SRAM NX or Shimano single ring transmissions gives simple, instinctive, sequential shifts but still have the gears for every climb and a chainset sized for shorter legs.

We’ve even stripped down the spoke count on the 26in wheels and fitted the same grippy front, fast rear tyre combinations as our full sized trail bikes, so they’re fast and fun, and make every adventure easier.

Expanding horizons even further, we’ve also introduced two of our award-winning, benchmark-setting Trail suspension bikes, the T-130 SR and T-130 S, to the Youth collection by making them available in XS size.

"The excellent Whyte 403 offers a ‘grown up’ ride while serving up lashings of confidence, reliability and above all fun to the most important mini-shredder in your life" Enduro Mountain Bike Magazine

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.

For the new 403 Whyte has specced a trigger shifter, which will help with the transition to an adult bike.

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.

“it’s a bike we all wish we had owned as a kid” - ENDURO MOUNTAIN BIKE MAGAZINE


Frame 6061 Hydro Formed T6 Aluminium, Multi Butted, SCR, Internal Cable Routing with BBX, Chainstay Post Mount Dropouts and Get A Grip Seat Clamp System
Fork Suntour, XCR, 100mm Travel, 32mm, HYDRO Lock-out, Air Spring, Adjustable Rebound, Post Mount
Crankset 28T Narrow/Wide Chainring, 165mm Crank Length
Front Derailleur N/A
Rear Derailleur Shimano Altus RD-M2000-SGS, 9 Speed
Shifters Shimano Altus SL-M310, 9 Speed Trigger Shifter
Cassette Sunrace 9 Speed, ED Black 11-40T
Chain Sunrace 9 Speed, ED Black 11-40T
Front Wheel Hub: Alloy, Cup & Cone, Double Seal, 28 Hole. Rim: Whyte Trail-403, 28 Hole. Spokes: 2.0mm, Black Stainless with Brass Nipples
Rear Wheel Hub: Alloy, Cup & Cone, Double Seal, 28 Hole. Rim: Whyte Trail-403, 28 Hole. Spokes: 2.0mm, Black Stainless with Brass Nipples
Front Tyre WTB Bronson Race, 26" X 2.1"
Rear Tyre WTB Riddler, 26" X 1.95"
Brakes Promax Solve, 160mm Rotor, Internal Routing
Handlebar Whyte Riser Bar 30mm Rise DB, 31.8mm, 640mm Wide
Stem Whyte Custom, 45mm S, M, 60mm L & XL
Tape/Grips Whyte Lock-on V Grip
Saddle Whyte Custom
Seatpost Whyte 20mm Offset, 30.9mm x 300mm, 6061 Alloy, 2 Bolt Clamp
Pedals Fibre Reinforced Composite Platform
Weight 12.4kg

Delivery & Returns


We dispatch items Monday to Friday. Please order by 4pm for your order to be dispatched same-day. We offer a next-day delivery service including Saturday delivery (extra charge). Please refer to our full Delivery Information page for further details.


We provide an excellent no-quibble returuns policy which our customers love. Should you need to return an item, we make it easy for you and the process is quick. Please refer to our full Returns Policy for further details.