Boardman ADV JNR 26" 2025 - Junior Bike
The Boardman ADV JNR 26" junior bike shares much of the same DNA as its 700c counterparts. A triple-butted aluminium frame and alloy fork provide a stable and confidence-inspiring ride whilst offering maximum versatility with luggage and mudguard mounts. The Vee Speedster multi-surface, mid-tread 1.5" tyres are a superb fast rolling option for tarmac and light trail use, and are easily changed out to something more aggressive, should the adventure demand it.
Key features:
- Lightweight Triple butted, smooth weld aluminium frame
- Smooth weld aluminium lowers with Chromo Steerer fork
- Shimano and Microshift 1x8 gears offer smooth and consistent shifting
- Tektro mechanical disc brakes offer all weather stopping power
- Weighs just 10.5kg
- Size: 26” wheel
- Colours: Blue
- The Boardman ADV JNR 26” is available with 0% APR finance
Boardman beginnings, providing little ones with the cycling foundations they can build on as they grow and gain confidence.
As with all the JNR models, quality is key and always starts with the frame. The small yet perfectly formed triple-butted aluminium frame and fork keep weight low, and the single down tube construction upfront allows greater standover clearance for those finding their feet astride two wheels.
Wide, fast-rolling tyres reduce bumps and vibration to build confidence, and as this grows and the speeds increase, the adjustable reach brake lever is designed for tiny hands to help even the smallest of speedsters to slow their roll.
Cycling adventures come in all sizes, and so do those seeking them. So, with adults catered for in our award-winning ADV (adventure) range, Boardman felt it only fair that those of smaller stature can also experience the biggest adventures.
Ergonomic drop handlebars and powerful cable disk brakes enhance the comfort and control further still, and with a wide range ratio nine-speed cassette, the ADV 26" is the perfect partner for cycling adventures, big or small.
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on any basket over £99
- UK price match guarantee
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free Cycle Plan insurance voucher
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Lighhtweight Triple butted, smooth weld aluminium |
Fork | 1" Triple Butted, smooth weld aluminium lowers with Chromo Steerer |
Headset | Semi-Inegrated NECO H124 1" Aheadset |
Stem | Boardman JNR Alloy 70mm - -7 degree rise |
Bars | Boardman JNR Alloy - 25.4mm - 360 wide with 120mm drop |
Front Brake | TEKTRO Mira MD-C400 Mechanical Disc Brake - 160 mm Rotor |
Rear Brake | TEKTRO Mira MD-C400 Mechanical Disc Brake - 160 mm Rotor |
Brake Lever | Microshift SB-R400 / R480 8-Speed |
Rear Mech | Shimano Claris RD-R2000 GS 8 Speed |
Shifters | Microshift R480 8-Speed |
Speed | 8 |
Rims | Double Wall Alloy |
Front Hub | Formula Alloy QR |
Rear Hub | Formula Alloy QR |
Spokes | Steel - Black |
Front Tyre | Vee Rubber, Speedster 26 x 1.5" |
Rear Tyre | Vee Rubber, Speedster 26 x 1.5" |
Seat Post | Boardman JNR Alloy 25.4mm x 300mm |
Saddle | Boardman JNR |
Chainset | Prowheel 32 Tooth - 140mm crank and double chainguard |
Bottom Bracket | FSA. - BB-7420ST |
Chain | KMC Z8.3 |
Cassette | Shimano CS-HG 8 Speed 11-34 Tooth |
Pedals | Wellgo 9/16" |
Weight | 10.5 KG |
Boardman ADV Size Chart
Size |
Height (cm) |
Height (inches) |
Inside Leg (cm) |
S |
170 – 179 |
5’7 – 5’10 |
74 - 82 |
M |
177 – 183 |
5’9 – 6’0 |
78 - 85 |
L |
181 – 189 |
5’11 – 6’2 |
82 - 89 |
XL |
187 - 195 |
6’1 – 6’5 |
86 - 94 |
What size frame do I need if I am between sizes? - read here
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