The Prevelo Bravo Four is the real thing: a purpose-built 24-inch dirt jumper that weighs 21.5 lbs, runs a proper 100mm Manitou air fork, and is built around the way kids actually ride pump tracks, dirt jumps and skateparks. We've been putting ours through its paces — this is our full review.
Prevelo Bravo Four — key specs
- Price: $1,299 USD
- Weight: 21.5 lbs
- Frame: 6061 aluminum, internal cable routing, forged adjustable dropouts
- Fork: Manitou J-Unit Comp, 100mm travel, tapered steerer, Boost 15x110 thru-axle
- Brake: Tektro J285 hydraulic disc (rear only)
- Drivetrain: Singlespeed, 28t narrow-wide chainring, 12t rear cog, half-link chain
- Cranks: HEIR two-piece direct mount, 140mm, narrow Q factor
- Wheels: WTB i27 rims, Novatec hubs; Kenda Booster 24 x 2.20 tires
- Sizing: Ages 8–13; saddle height 25"–29.5"; standover 23.5"
A frame that's built to be crashed, learned on, and handed down
The 6061 aluminum frame is genuinely robust — this is a bike that will get looped out, cased, and dropped on concrete, and the frame shrugs it off. The standover is low at 23.5 inches, so smaller riders can get a foot down (or bail) without drama, and the forged adjustable dropouts let you dial in chain tension precisely and fine-tune how the back end feels as your rider grows. Internal cable routing keeps everything tidy and out of harm's way.
The fork actually works
The Manitou J-Unit Comp gives the Bravo Four 100mm of air-sprung travel with a tapered steerer and a Boost thru-axle front end. On a lot of kids' bikes the fork is little more than a heavy decoration; this one performs properly — supportive when a rider pumps and pre-loads, and forgiving enough when a landing comes up short. Because it's an air fork, you can tune it to a light rider instead of asking a 70-pound kid to wrestle a spring set up for someone twice their size. While not huge fans of the J-Unit for trail riding, for a DJ, it hits the mark.
Fast wheels and a tire that does everything
The WTB i27 rims laced to Novatec hubs roll fast and strong — spin them up and they just keep going, which is exactly what you want when speed has to come from pumping, not pedalling. The Kenda Booster 24 x 2.20 tires are a smart pick: the fast-rolling tread is quick on hardpack and pump track surfaces, grips on dirt jump lips, and doesn't punish you on the ride to the park. As an all-rounder for jumps, skatepark and light trail laps, this tire selection is hard to fault.
One brake, and it's bar-spin ready
Dirt jumpers run a rear brake only, and the Bravo Four's Tektro J285 hydraulic disc has plenty of power for hauling speed down between sets — with a lever sized for kids' hands. Our favourite detail: Prevelo spec's an ample brake hose, long enough to wrap around the headtube one full turn, so 360 bar spins are on the menu as soon as your little one is. No tangled hose, no buying a longer line later.
Singlespeed gearing that just makes sense
The 28-tooth narrow-wide chainring paired with a 12-tooth rear cog hits the sweet spot for a 24-inch dirt jumper. It's easy enough to pedal to the park and around the pump track, tall enough that riders aren't spinning out on the roll-in, and the half-link chain plus sliding dropouts make tensioning a two-minute job. Nothing to break, nothing to adjust out of whack mid-session — for this kind of bike, one gear done right beats a derailleur every time.
Cranks deserve their own paragraph
Prevelo spec'd proper two-piece, direct-mount mountain bike cranks — the same style of crank you'd find on an adult bike, not the piece of crap afterthoughts on most kids' bikes. Two things matter here. First, the length: 140mm is perfect for 24-inch-wheel riders, giving enough leverage without pedal strikes on jump take-offs. Second, the Q factor is narrow. Kids' hips are narrow, so when a bike comes with wide adult-spaced cranks, little knees splay out with every pedal stroke. The Bravo Four's narrow Q factor keeps legs tracking straight, whether they're pedalling to the next set or sprinting the start hill.
Easy to make it their own
The cockpit uses a standard 31.8mm clamp — a 680mm wide bar with 45mm of rise on a short 35mm stem — so swapping the bar for a different rise, width or sweep to suit a rider's preference is cheap and easy. As kids grow and develop their own style, the bike can keep up without proprietary parts.
Who is the Bravo Four for?
Riders roughly 8 to 13 years old who live for the pump track, the dirt jumps and the skatepark — and who want one bike that does all three without holding them back. At 21.5 lbs it's light enough for kids to pump, move around in the air, and carry back up the roll-in themselves.
The verdict
The Bravo Four gets the details right where most kids' jump bikes cut corners: a robust frame, a fork that genuinely performs, fast-rolling wheels, a bar-spin-ready hydraulic brake, sensible singlespeed gearing, and proper two-piece cranks with a kid-narrow Q factor. At $1,299 USD it's a serious bike — but it's a serious tool for a kid who rides jumps every week, and it will survive being handed down to the next rider in line.
Where to buy: Prevelo