Electric skateboard gear ratios explained: 32T vs 38T

The gear ratio on your electric skateboard changes how it accelerates, how it handles hills and how it feels at speed. A 32T setup favours top speed and high-speed stability, while a 38T setup prioritises torque, hill climbing and low-speed punch. Choosing between them is one of the most practical tuning decisions you can make, and it matters more than most riders realise.

What the numbers actually mean

The "T" stands for teeth, referring to the number of teeth on the drive gear that meshes with your belt. A smaller drive gear spins the wheel faster for each motor rotation, which raises your top speed. A larger drive gear spins the wheel more slowly but with more rotational force, which is what we call torque.

Think of it like gears on a bicycle. A smaller chainring at the pedals makes it easier to climb but limits your top speed. A larger chainring is harder to spin but gets you moving faster on flat ground. Electric skateboard gear ratios work on the same principle.

On Evolve boards, the 32T belt code (GT-003) is the street speed setup. The 38T belt code (GT-004) is the torque-focused alternative. Both run on the same motor, the same battery and the same controller. The only difference is how aggressively the wheel is being driven.

When 32T makes sense

The 32T gear is the right choice when most of your riding happens on flat, smooth surfaces and you want the board to feel fast and composed at speed. If you regularly cruise along coastal bike paths, open stretches of concrete or urban roads without significant elevation, 32T gives you more headroom before the board feels like it is working hard.

At higher speeds, the motor runs at a more efficient RPM range with 32T, which can contribute to slightly better real-world range on flat terrain. The acceleration curve also feels more linear and relaxed, which some experienced riders prefer for commuting and distance sessions.

Riders in flatter areas like parts of Perth or along the Gold Coast waterfront tend to get the most out of a 32T configuration. Long, sealed stretches where you can carry consistent speed reward the setup.

When 38T makes sense

Switch to 38T if your regular routes involve hills, mixed terrain or situations where you need strong, confident braking. The extra teeth on the drive gear multiply the torque output at the wheel, so the board pulls harder from a standing start and climbs more aggressively.

Braking also improves with 38T. The same motor braking force is applied through a higher mechanical advantage, which shortens stopping distances and gives you more modulation when coming down steep grades. For riders in Sydney or Melbourne, where hills are part of everyday riding, this is not a minor detail.

Heavier riders benefit disproportionately from 38T. The extra torque compensates for the additional load, keeping acceleration feeling responsive rather than sluggish. If you are pushing close to the upper weight limit of your board, 38T is the more honest choice for real-world performance.

How this applies to the Diablo Bamboo Street

The Diablo Bamboo Street is set up from the factory for strong, balanced street performance. Its dual 6374 motors put out 3500W each, running through the EFOC 2.0 controller with smooth FOC commutation. The 864Wh Samsung 50S battery holds voltage well under sustained load, which means the power delivery stays consistent whether you are sprinting away from lights or climbing a long incline.

In its standard street configuration, the Diablo Bamboo Street runs 97mm urethane wheels with a drive gear tuned for street riding. Swapping gear ratios changes the character of the board meaningfully. On a board with this much motor behind it, 38T feels explosive off the line. The 32T configuration lets that same motor breathe at higher speeds without working into its upper RPM range, which keeps the ride smooth and stable when you are cruising at 45 to 50 km/h.

For Brisbane and Gold Coast riders on sealed flat paths, 32T is a natural fit. For Sydney riders navigating the Northern Beaches or Melbourne riders dealing with anything in the inner east, 38T is worth the switch. The Diablo's hill capability sits at 45 per cent gradient regardless, but 38T gets you there with more confidence and less motor heat on longer climbs.

Changing gear ratios: what is involved

Swapping between 32T and 38T requires a matching belt. You cannot simply drop in a different drive gear and run the existing belt, as the tooth count changes the belt length requirements. Evolve supplies matched belt and gear kits, so the safest approach is to use the correct combination for the setup you are running.

The process itself is straightforward for anyone comfortable with basic board maintenance. You remove the motor mount cover, release the belt tension, swap the drive gear and install the correct replacement belt. If you are in Queensland, the team at Mermaid Waters can walk you through it or handle the swap as part of a service.

It is worth noting that this kind of tuning is one of the reasons riders stick with Evolve long term. The drivetrain is accessible, the components are documented and you are not locked into a single performance profile.

The practical takeaway

If you ride mostly flat terrain and want maximum speed and range efficiency, run 32T. If you deal with hills regularly, want stronger braking or carry more weight, run 38T. Neither is universally better. They are different tools for different riding conditions.

The Diablo Bamboo Street has the motors and battery to make the most of either setup. It is one of the few street boards where the gear ratio conversation is genuinely worth having, because the hardware is capable enough that the tuning difference is felt clearly in the ride.

People also ask

Does gear ratio affect range on an electric skateboard?

Yes, indirectly. On flat terrain, 32T can be slightly more efficient because the motor operates at a more comfortable RPM range during cruising. On hilly terrain, 38T reduces the load on the motor during climbs, which can improve efficiency in that context. Real-world range depends heavily on terrain, rider weight and riding style.

Can I swap gear ratios on a Diablo Bamboo Street?

Yes. The Diablo Bamboo Street uses a belt-drive system and is compatible with both 32T and 38T drive gear setups. Swapping requires the matching belt for the new gear. Evolve supplies the correct belt codes for each configuration, and the Mermaid Waters store can assist with fitting if needed.

Which gear ratio is better for hills?

38T is better for hills. The higher tooth count increases mechanical torque at the wheel, which improves climbing power, reduces motor load on sustained inclines and sharpens regenerative braking when descending.

Will a different gear ratio affect my top speed?

Yes. A 32T gear allows a higher wheel speed per motor rotation, raising the theoretical top speed. A 38T gear reduces top speed slightly but delivers stronger acceleration and torque throughout the speed range.