24 Inch Mountain Bike S24102 vs 26 Inch All Terrain Mountain (2026)

Which mountain bike fits the rider, not just the trail

The real decision here isn't about off-road ability in general — both bikes are described as trail-capable. It's about who the frame and wheels are sized for: a growing teenager or an adult.

lays out where the two actually differ.

Elecony S24102 — 24 Inch Youth Mountain Bike

24 inch mountain bike - Shimano 21-Speed | CycleAddons is built around 24-inch wheels with 1.75-inch wide tires, a steel frame, a front suspension fork, and a genuine Shimano 21-speed shifter. The shop describes dual mechanical disc brakes front and rear. It's positioned for boys, girls, and teenagers who want a capable off-road bike sized for a smaller rider, or a durable daily commuter for the same age group.

Priced at $279.00 (previously ), it's the pick when the rider is still growing into adult-sized frames.

26 Inch All Terrain Mountain Bike — Full Suspension

26 inch all terrain mountain bike - Full Susp. | CycleAddons steps up to 26-inch wheels and adds a rear shock absorber on top of the front fork, giving it front-and-rear suspension where the S24102 only has front. It also runs a 21-speed drivetrain and mechanical disc brakes front and rear, but the shop doesn't name the shifter brand the way it does on the youth model. The listing states it arrives 85% pre-assembled, and it's aimed at adult men, women, and active youth for trail riding, touring, and paved commuting.

It's listed at $148.00, down from .

Where the two actually differ

Both bikes use a high-strength steel frame and a 21-speed setup, so the gearing range is not the differentiator. What changes between them is wheel size, suspension (front-only versus full suspension), and who the frame geometry is built for. The 24-inch model also specifies its tire width — 1.75 inches — while the 26-inch model's tire width isn't stated in its description.

The 26-inch bike is the only one of the two that tells you its assembly state out of the box (85% pre-assembled); the 24-inch listing doesn't give that figure at all.

Who should choose which

Pick 24 inch mountain bike - Shimano 21-Speed | CycleAddons for a pre-teen or teenager who needs a properly sized mountain bike or commuter, with Shimano-branded shifting and dual disc brakes. Pick 26 inch all terrain mountain bike - Full Susp. | CycleAddons for an adult or older teen who wants full front-and-rear suspension for longer trail or touring rides. Whichever one fits, you can check OFFERDY at checkout for a discount on the order.