Dartmoor Sparrow JUNIOR bike 27.5/26 Solar Eclipse

Dartmoor Sparrow Junior 27.5/26" - Junior Mullet MTB Bike

Are you looking for a machine for your young biker that will safely guide them through technical sections and boost their confidence on singletracks and in the bike park? The Dartmoor Sparrow Junior 27.5/26" junior trail bike is specifically designed for young riders with a height of 140 cm to 160 cm. This modern hardtail combines aggressive trail geometry with an innovative mixed-wheel concept, making it the perfect stepping stone for transitioning to full-size adult riding. Whether you are planning a family day on fast trails, a lighter enduro ride, or honing skills on a pump track, the Sparrow Junior ensures maximum control, stability, and endless fun.

Unique Mini-Mullet Concept: The Best of Both Worlds

Why combine two different wheel sizes? For the Sparrow Junior, Dartmoor went with a so-called mini-mullet setup. Up front, you'll find a 27.5" wheel that acts as an unstoppable shield—rolling over roots and rocks more easily, holding traction perfectly in corners, and providing stability at higher speeds. At the rear, a 26" wheel is fitted, which significantly shortens the frame's rear triangle. This makes the bike incredibly playful, easy to pop off jumps, and offers the child plenty of tire clearance in steep sections without the risk of buzzing the saddle. The AL 6061-T6 alloy frame is extremely durable and ready to withstand rougher handling in the bike park.

Premium Air Suspension and Reliable Shimano Cues Drivetrain

For suspension to truly work on a junior bike, it must be sensitive to low rider weights. The X-Fusion RC32 air fork with 130mm of travel allows for precise pressure adjustment based on the child's current weight. This ensures the fork doesn't stay stiff, but actively smooths out bumps and saves the young biker's wrists. Shifting is handled by the new Shimano Cues Linkglide 1x9 setup. This system stands out for its extreme durability, smooth shifting under load, and thanks to the wide 11-46T cassette, the young athlete can climb the steepest hills without having to get off and push. The chain guide and optimized tooth profile on the Prowheel Charm cranks also reliably keep the chain in place even on the roughest terrain.

Safety First: Junior Components and Excellent Grip

Speed on the trail requires absolute control over stopping. Tektro hydraulic disc brakes are equipped with special short-reach levers that are positioned closer to the handlebars and shaped for smaller fingers. This means the child doesn't need much force to brake fully, preventing finger fatigue even on long descents. Maximum stability and confidence in corners are provided by the durable Dartmoor Raptor rims wrapped in versatile Kenda Amrak tires, which grip excellently on dry and slightly damp ground. The Dartmoor Sparrow Junior is a perfectly balanced package that makes advancing riding skills safe, smooth, and above all, incredibly fun.

Technical Specifications

Frequently Asked Questions (FAQ)

Why does the bike have different wheel sizes (mullet setup)?

This setup (27.5" front and 26" rear) is ideal for teenage riders. The larger front wheel provides great stability, easier rolling over obstacles, and secure traction. Conversely, the smaller rear wheel allows for a shorter chainstay, which makes cornering easier, simplifies lifting the front wheel over obstacles, and gives the rider more tire clearance behind the saddle when shifting weight backward during technical descents.

How does an air fork work for lighter children?

Unlike cheap coil-sprung forks, which often barely compress under a child's weight, the X-Fusion RC32 air fork can be precisely inflated to the rider's specific weight using a shock pump. This ensures the fork remains highly sensitive even under a lighter rider, effectively dampening impacts and providing safe control over the front wheel on any rough surface.