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Young rider in a helmet cornering on a dirt mountain bike trail through woodland terrain using MTB 69
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Frog MTB 69 gold Bike on a white background side view
Frog MTB 69 Blue Bike on a white background
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Young rider wearing a helmet riding a frog mtb 69 down a wooden trail ramp in a forest setting

MTB 69 Kids Mountain Bike

26” Durable Kids Mountain Bike for Ages 10 to 13

Price match guarantee*

Manufacturer's warranty included

Safety-Focused Engineering
£880.00
% OFF
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 5-10 business days

✅ All Prices Include VAT

Product Overview

The Frog MTB 69 is a purpose built 26 inch mountain bike for children aged 10 to 13 who are ready to explore woodland paths and off road trails with confidence.

Designed specifically for junior riders, it combines a lightweight aluminium frame with child sized geometry, a short stem and wide handlebars for balanced control and steady handling.

 

Chunky Kenda tyres support grip on gravel, dirt and rocky ground, while the RST suspension fork and hydraulic disc brakes offer comfort and stopping performance in varied conditions.

 

The nine speed drivetrain and wide range cassette make climbing easier and allow young riders to adjust smoothly to changing gradients. The pedal and gear setup supports developing technique and building confidence on longer rides.

 

This bike is suitable for children with an inside leg measurement of 65 to 83 centimetres.

Why Its Great For Families

✅Encourages outdoor exploration and confidence on real trails

 

✅Supports skill development and balance in natural terrain

 

✅Adjustable seat and handlebar setup grows as your child grows

 

✅Reliable braking and strong tyres add peace of mind

 

✅Helps children build fitness and independence through active play

 

✅Durable components designed for regular off road riding

Specifications

ENGWE L20 Specifications
Product Safety CertificationsISO 4210 (M)
Bike Weight12.91kg (including pedals)
Frame6061 T6 heat treated aluminium alloy, seat tube 15" (380mm), maximum rider weight 65kg
ForkRST F1RST junior specific 26" air suspension fork with lockout and damping control, 100mm travel, 100x15mm thru axle
Front HubKT-MF1F, high performance aluminium 15mm thru axle disc hub, sealed cartridge bearings, 24 hole, 6 bolt
Rear HubKT-SN3R, high performance aluminium disc hub, sealed cartridge bearings, QR, 28 hole, 6 bolt
Cassette / FreewheelMicroshift CS-H093, 9-speed, 11-46t
RimKT-DS18 Aluminium, 26", double wall, disc-specific
Seat ClampAluminium, QR
StemAluminium, 1"1/8, 50mm, 4 bolt clamp
GripsFrog Bikes specific, lock on, slim grips
Brakes (F&R)Tektro hydraulic disc brakes, 160/160mm rotor
TyresKenda AMRAK K1247, 26"x2.2", 30TPI (ETRTO/ISO 54-584), supplied with presta valve inner tube
Accessories IncludedBell, bike reflectors white/red, wheel reflectors orange/white
Crankset / ChainringFrog Bikes patented aluminium straight arm cranks with double chain guard, 140mm, steel 32t chainring
Bottom BracketNECO B910E 107.5mm square taper
PedalsFrog Bikes eco friendly rice husk and plastic composite with reflectors, 9/16"
ChainKMC X9, 9-speed
HandlebarAluminium oversized, 640mm width, 20mm rise
Brake LeversTektro M276, junior specific, two finger hydraulic disc brake
SaddleFrog Bikes junior specific slimline saddle (medium)
Seat PostAluminium, micro adjust, 27.2mm
Gear ShifterMicroshift Advent SL-M8195-R, Xpress Plus 9 speed
Rear DerailleurMicroshift Advent RD-M6195M, medium cage, 9 speed

Delivery & Peace of Mind

✅ We dispatch bikes within 5 working days. UK delivery usually takes 5–10 working days (longer during busy periods), and international orders may take a bit longer. Accessories and smaller items are sent via standard post and typically arrive within 3–5 working days, with postage costs shown at checkout.

 

✅ Arrives ninety five percent pre built, with minimal assembly required

 

✅ Two year standard warranty covering frame, fork, components and paintwork

 

✅ Optional ten year frame and rigid fork warranty when registered within twenty eight days of purchase

 

✅ Designed and tested to exceed international safety standards

 

✅ Packaging is more than eighty percent recycled and fully recyclable

 

 

What's  in the Box?

Frog MTB 69 bike

Basic Tool kit

Reflectors

Bell

Instruction Manual

*A Price Match Guarantee is considered at the company's discretion, based on factors like competitor pricing, availability, and promotions.

Geometry

SIZE

ENGWE L20 Geometry
Measurement Value
A - Wheelbase (mm)1055
B - Seat Tube Angle (°)74
C - Head Tube Angle (°)69.5
D - Effective Top Tube (mm)544
E - Head Tube Length (mm)85
F - Chain Stay Length (mm)435
G - Seat Tube Length (mm)380
H - Bottom Bracket to Floor (mm)290

WHY CHOOSE FROG BIKES

Why buy a Frog kids' bike?

Here are the 4 reasons why you must consider these bikes

Research-led kids' 
bike design

Frog bikes are engineered using pioneering research by Brunel University sports scientists and renowned engineer Dimitris Katsanis, setting new standards in kids' bike design.

Child-specific bike components

Every Frog bike features shorter cranks, scaled-down handlebars, and easy-reach brake levers for maximum comfort, control, and speed for young riders.

 

Durable, built to last
 

Optimised for durability, Frog bikes are robust, adaptable, and maintain a high resale value, up to 60% after 2 years, making them a smart investment for families.

Exceeds ISO safety standards 

All Frog bikes undergo rigorous ISO safety testing. Hybrids, city, road, and track are tested to adult safety standards for extra peace of mind.

 

Free Delivery to UK Mainland

For all Trampolines, E-bikes and Playhouses and Climbing Frames

100% Money-Back

No risk, full refund assured

Fast Customer Support

Quick and responsive customer support

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