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The Best Kids Mountain Bikes Reviewed and Compared

Written by John Wren|

A 24-inch kids mountain bike in a driveway with stand-over already checked
A 24-inch kids mountain bike in a driveway with stand-over already checked

20- or 24-inch aluminum, stand-over first. RoyalBaby or High Timber. Shop assembly. Kryptonite Mini-7. A lid a shop sized.

Key takeaways

  • Inseam, not age.
  • Shop the brakes.
  • Lock the frame.
  • Not an adult 29er.

A kids mountain bike that still gets ridden is a wheel size that still matches inseam, brakes a shop set, and a lid a shop sized — not an adult 29er you lowered the seat on. The short answer: buy a RoyalBaby 20- or 24-inch if you want a mailbox aluminum, a Schwinn High Timber if you want a name a shop has seen, pay assembly, and lock the frame.

Short version. The bike page is the long fit. A beach cruiser if the other Saturday is already sand. Pair with a lock. Check live prices.

This page is knobby kids bikes. A road bike is drops. This is RoyalBaby, Schwinn High Timber, a Kryptonite.

A 24-inch kids mountain bike in a driveway, stand-over already checked. A lid waits on the bar.
A 24-inch kids mountain bike in a driveway, stand-over already checked. A lid waits on the bar.

Inseam first. A catalog age is a bruise.

Do: stand-over in the shoes they will ride. Don’t: a 24-inch hope on a kid who needed 20. Kids outside. A first race is a later door.

Shop assembly is not optional. Cables stretch. A garage “I figured it out” is a spongy brake at the bottom of a driveway.

RoyalBaby if you want a mailbox aluminum they will still grow on

The RoyalBaby 20/24-inch kids mountain bike is the live aluminum we named. Confirm wheel size on the listing. Check live prices.

RoyalBaby Kids Mountain Bike 20/24-Inch

RoyalBaby Kids Mountain Bike 20/24-Inch

Check price on Amazon

The RoyalBaby Explorer 24-inch is the live alternate we named if 24 is already the inseam. Check live prices.

RoyalBaby Explorer Kids Mountain Bike 24-Inch

RoyalBaby Explorer Kids Mountain Bike 24-Inch

Check price on Amazon

Do: a bell and reflectors you actually leave on. Don’t: a first ride after dark without a light. A handheld is a walk light, not a bike light. A shop lid is still the lid.

High Timber if you want a name a shop has seen

The Schwinn High Timber is the live kids-and-youth mountain bike we named. Confirm 20- versus 24-inch on the listing. Check live prices.

Schwinn High Timber Mountain Bike

Schwinn High Timber Mountain Bike

Check price on Amazon

Do: twist shifters they can still reach. Don’t: a 21-speed maze on week one. A first road bike is a later teenager if they already live in drops.

A lock if the driveway is already a street

The Kryptonite Evolution Mini-7 is the live U-lock we named. Frame, not a wheel you leave. Check live prices.

Kryptonite Evolution Mini-7 Bike U-Lock

Kryptonite Evolution Mini-7 Bike U-Lock

Check price on Amazon

Do: the same lock every time. Don’t: a cable you can grin through. The lock page.

WantHonest tool
A shop nameSchwinn High Timber
A streetKryptonite Mini-7
Drops or a cruiserA different page

Shop assembly. Check live prices.

Inseam, brakes, a lid, a lock

That is the kids mountain bike. Check live prices. Come home with dirt on the knobs, not an adult 29er they feared.

Stand-over in the shoes they will ride

The RoyalBaby we named still wants 20- or 24-inch you confirmed. Check live prices. A kids mountain bike. Kids outside.

The Explorer and the High Timber we named still want a shop. Check live prices. A tune. The bike.

The Kryptonite Mini-7 we named still wants a frame. Check live prices. A lock. A beach bike.

A lowered adult 29er is a top tube they will meet

A kids mountain bike. The bike. Buy a kids last.

A first road bike is drops. A beach bike is a cruiser. This page is knobs.

A first race is a later door. Leave some gas.

A lid a shop sized. Not an adult road helmet as a kids lid.

A kids mountain bike. Kids outside. Family days.

A lock. A driveway that is already a street.

A tune. Cables stretch. Pay the shop.

Wipe the knobs. Check the brakes. Then the lock.

A kids mountain bike. A tune. Storage.

Check live prices. Kids outside. A lock. Come home with dirt on the knobs.

Last line: an adult 29er is not a kids bike. A sized 24 is. A kids mountain bike.

Guests will try to gift a too-big bike they will grow into

Say the rule: inseam now, not next year. A kids mountain bike. Kids outside.

A beach bike. The bike. Different last.

A mood hour. Family days. A driveway loop is enough.

A weekday check is the hour you still have

Do: the same card you wrote. Don’t: a scavenger hunt at dark. A kids mountain bike Kids outside

The RoyalBaby, High Timber, and Kryptonite Mini-7 we named still want inseam and a shop. Check live prices. The bike A lock

A tune A beach bike Come home wanting Thursday.

Guests will try to add a second job

Say the rule at the house. One classroom. A kids mountain bike Family days

The RoyalBaby, High Timber, and Kryptonite Mini-7 we named still want inseam and a shop. Check live prices. Kids outside The bike

A lock A tune A grin is enough.

A cancel you already wrote is a cancel you will still take

A beach bike Family days Pavement is allowed.

The RoyalBaby, High Timber, and Kryptonite Mini-7 we named still want inseam and a shop. Check live prices. A kids mountain bike Kids outside

The bike A lock That is a successful Saturday.

Coil it. Dry it. Then the bin.

A tune A beach bike Mice eat webbing.

The RoyalBaby, High Timber, and Kryptonite Mini-7 we named still want inseam and a shop. Check live prices. Family days A kids mountain bike

Last line: a catalog hope is not the tool. The one you named is. Kids outside

Inseam, brakes, a lid, a lock

A kids mountain bike Kids outside The bike

A lock A tune Check live prices.

A beach bike Family days That is enough.

The five-minute leave includes the thing you will forget

A kids mountain bike A lock Coil so the next day can start.

Kids outside A tune Check live prices.

The bike A beach bike Come home wanting the next hour.

The driveway is the class. Then the Saturday.

Family days A kids mountain bike Do the boring hour at the house.

Kids outside The bike Check live prices.

Last line: a listing is not a day. The tool you named is. A lock

Write the boring card once. Then stop shopping.

The RoyalBaby and High Timber we named still want inseam. Check live prices. A kids mountain bike Kids outside

Do: the same bin every time. Don’t: a new listing the night before. The bike A lock

A tune A beach bike Family days That is the hour you still have.

A repeatable Saturday beats a catalog weekend

A kids mountain bike The bike A tune

The RoyalBaby and High Timber we named still want inseam. Check live prices. Kids outside A lock

A beach bike Family days Come home with the same kit.

Tell someone the plan. A quiet hour is a search.

The RoyalBaby we named still wants stand-over in ride shoes. Check live prices. A kids mountain bike Kids outside

Do: a card on the fridge. Don’t: a solo first in weather you would not boat in. The bike A lock

A tune A beach bike Family days

Kids get the boring rule, not a costume

Family days A kids mountain bike Kids outside

The RoyalBaby we named still wants stand-over in ride shoes. Check live prices. Kids outside The bike

A lock A tune A photo waits until the rule is said.

The photo is last. The habit is first.

A beach bike Family days A kids mountain bike

The RoyalBaby we named still wants stand-over in ride shoes. Check live prices. Kids outside The bike

A lock A tune That is the magazine Saturday.

Inseam now, brakes, a lock

A kids mountain bike Kids outside The bike Check live prices.

A lock A tune A beach bike A catalog hope is not the Saturday.

Family days A kids mountain bike Come home with the same kit, wanting Thursday.

Last look: name the job, then the tool

Kids outside The bike A lock Check live prices.

A tune A beach bike Family days Write the cancel if the door is ugly.

A kids mountain bike Kids outside That is the Saturday we meant.

Inseam now, not a catalog age. A 24 they cannot stand over is a bruise.

The RoyalBaby 20/24 we named still wants stand-over in the shoes they will ride. Check live prices. A kids mountain bike. Kids outside.

Do: a shop finish. Don’t: a mailbox hope you will set in a driveway at dark. A tune. The bike.

A beach cruiser is a different Saturday. This page is knobs. A beach bike. A lock.

Brakes a kid can still reach. A lever they cannot pull is a tree.

The RoyalBaby Explorer 24 and the Schwinn High Timber we named still want a shop that will set the reach. Check live prices. A kids mountain bike. A tune.

A lid a shop sized is still the lid. Kids outside. Family days.

A lock. The Kryptonite Mini-7 we named still wants frame, not a wheel you leave. Check live prices.

A first dirt path, not a drop they saw on a phone

Do: a park loop. Don’t: a black trail as a birthday. Leave some gas. A mood hour.

The High Timber we named if they already want a name they know. Check live prices. A kids mountain bike. The bike.

A beach bike if the other Saturday is already sand. This is still knobs. A kids mountain bike.

Guests do not get the bike as a jump costume

Say the rule: helmet, then the path, then a sit. Kids outside. Family days.

Check live prices on both RoyalBaby bikes, the High Timber, and the Mini-7. A kids mountain bike. A lock.

Tape heat if the saddle is already the heat. A hallway sit still applies. A tune.

Last bin: wipe the knobs, lock the frame, then the same inseam next season

Cables stretch in week one. Pay the shop again. A tune. The bike.

The RoyalBaby we named still wants stand-over in ride shoes. Check live prices. A kids mountain bike. Kids outside.

Come home with the same grin, wanting Thursday. That is the kids mountain bike we meant. A lock. Family days.

Also in the magazine

Keep going with the bike, a lock, a beach cruiser, and kids outside. Check live prices.

Frequently asked questions

What is the best mountain bike for a kid?

A sized 20- or 24-inch aluminum a shop finished — RoyalBaby if you want a mailbox, Schwinn High Timber if you want a name a shop has seen.

20 or 24 inch?

Inseam decides. Stand-over in the shoes they will ride. A catalog age is a bruise.

Can they ride an adult bike?

No. A lowered 29er is a top tube they will meet. Buy a kids last.

Do I need a shop?

Yes. Mailbox bikes arrive unfinished. Pay someone to set the brakes.

What lock?

Kryptonite Evolution Mini-7 through the frame if the driveway is already a street.

Helmet?

A lid a shop sized for a kid. An adult road helmet is the wrong lid.