NS Bikes Eccentric 20 2025 - Kids Bike
The NS Bikes Eccentric 20 is built to inspire confidence on the trail. This isn’t just a scaled-down adult bike, it’s purpose-built for smaller riders who are ready to tackle singletrack and technical terrain. With an AL6061-T6 alloy frame using custom formed and butted tubing, it’s light, strong, and sized just right for younger mountain bikers.
Key Features:
- Lightweight alloy frame with custom formed and butted tubing
- RST Spex air fork with 80mm of suspension travel
- SRAM GX 10-speed drivetrain with short cage mech
- Hydraulic disc brakes with 160mm rotors
- 20” wheels with Kenda SBE tyres for trail grip
- JUNIT cockpit sized perfectly for small hands
- Available with 0% APR finance
The RST Spex fork offers 80mm of smooth air-sprung travel, providing a supple response over roots and rocks while remaining light enough for smaller riders to control. Wide 30mm rims and fast-rolling 20x2.1” Kenda tyres give young riders great grip and stability, even at lower pressures—ideal for bumpy trails.
Up front, a JUNIT ProTaper handlebar and grips are designed with a reduced diameter to suit small hands. Paired with a 600mm width, they help deliver responsive and comfortable control. The short 127mm cranks with a narrow Q-factor support efficient pedalling and better ergonomics for developing riders.
Shifting is handled by SRAM GX 10-speed components for crisp gear changes, and hydraulic Rever Attack-U brakes deliver reliable stopping power—boosting both control and safety. With its smart spec and kid-focused fit, the NS Eccentric 20 is perfect for youngsters progressing beyond the basics and looking to explore proper off-road trails.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | NS Bikes AL6061-T6 custom formed and butted tubes, 20 inch, 135x10 vertical dropouts |
| Fork | RST Spex 80mm travel, air spring, straight steerer, 15x100mm axle |
| Headset | Integrated straight steerer IS42/52, sealed bearings |
| Stem | NS Drop 31.8, 50mm, angle +10° |
| Bars | ProTaper JUNIT Kids handlebar, 600mm wide, 31.8mm clamp, 1" Rise |
| Front Brake | Rever Attack-U, 160mm |
| Rear Brake | Rever Attack-U, 160mm |
| Brake Lever | Rever Attack-U |
| Rear Mech | Sram GX 10 speed short cage |
| Shifters | Sram GX 10 speed trigger |
| Speed | 10 |
| Rims | NS Bikes Junior 20", 30mm wide, 24h |
| Front Hub | NS Bikes 100x15mm sealed berings |
| Rear Hub | NS Cassette 135x10mm (sealed bearings) |
| Spokes | Spokes w/14mm nipples |
| Front Tyre | Kenda SBE 20x2.1" |
| Rear Tyre | Kenda SBE 20x2.1" |
| Seat Post | Kalloy 31.6 |
| Saddle | NS Bikes kids saddle |
| Chainset | NS Bikes Junior 127mm, narrow-wide 28t chainring |
| Bottom Bracket | BSA Square taper, sealed bearings |
| Chain | Sram PC 1031, 10 speed |
| Cassette | Sram GX 10 speed 11-36 |
| Pedals | VP-225 Junior platform |
Junior Bike Size Chart
|
Approx. Age |
Height (cm) |
Type / Wheel Size |
|
1 - 4 |
77 – 105cm |
Balance |
|
2 - 4 |
85 – 105cm |
12" |
|
4 - 6 |
105 – 117cm |
14" |
|
5 - 7 |
112 – 125cm |
16” |
|
6 - 8 |
117 – 132cm |
18” |
|
7 - 10 |
125 – 136cm |
20” |
|
10+ |
136+cm |
24” |
Read our kids bike size guide for more information on kids bike sizing.
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