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Boosted shut down in 2020, which changed what buying a drive belt means. There is no official supply chain any more, no warranty behind the part, and the boards still rolling are kept alive entirely by third-party suppliers and a handful of specialist shops. The good news is that belts are a commodity: they are standard HTD 3M timing belts, they are still manufactured in the right sizes, and several suppliers now make versions that outlast anything Boosted shipped. Two things decide your order. First, which board you have — V1 uses a different belt from everything after it, and the V2, V3 Plus, Stealth, Mini S and Mini X share a common size. Second, your pulley: the stock 225-3M-15 belt fits the 56-tooth pulley, and if you have fitted a different gear ratio you need a different length. Get those two right and the rest is choosing between materials and suppliers.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Stock-size 225-3M-15 replacement belts | $15–$30 per pair | Amazon |
| 2 | Kevlar-reinforced Boosted belts | $25–$45 per pair | Amazon · eBay |
| 3 | eBoardStuff HyperDrive belts | $25–$45 per pair | Amazon |
| 4 | BenchWheel replacement belts | $18–$35 per pair | Amazon · eBay |
| 5 | Romp Supply ROMP belts | $20–$50 per kit | Amazon |
| 6 | Boosted V1 replacement belts | $18–$35 per pair | Amazon · eBay |
| 7 | 204-3M-15 belts (46-tooth pulley) | $18–$35 per pair | Amazon |
| 8 | 234-3M-15 belts (63-tooth pulley) | $18–$35 per pair | Amazon |
| 9 | 243-3M-15 belts (68-tooth pulley) | $20–$40 per pair | Amazon |
| 10 | Complete belt service kit | $30–$60 per kit | Amazon |
The picks, in detail
Stock-size 225-3M-15 replacement belts
The default order for the overwhelming majority of boards. If you have a V2, V3 Plus, Stealth, Mini S or Mini X on stock gearing, this is your part number.
- 225mm pitch length, 3mm HTD pitch, 15mm width
- Fits the stock 56-tooth wheel pulley
- Compatible with V2, V2 Dual+, V3 Plus, Stealth, Mini S and Mini X
- Sold in pairs for dual-motor boards
- Widely stocked by multiple suppliers
- The correct part for a stock board — no measuring, no compatibility guesswork
- Cheapest and most available option; several suppliers compete on it
- Always replace in pairs on a dual-motor board, and pairs are how these are sold
- Wrong if you have changed pulleys for a different gear ratio
- Basic versions use the same rubber compound that wore out originally
- Quality varies significantly between unbranded sellers
Kevlar-reinforced Boosted belts
The clearest genuine upgrade over stock. Aramid tensile cords resist the stretch that makes an ageing belt skip teeth under hard acceleration.
- Kevlar/aramid tensile cord reinforcement
- Advertised service life of 350+ miles
- Fits V2, V3, Mini S, Mini X, Plus and Stealth
- Sold in pairs, commonly with a warranty
- Available on Amazon and specialist retailers
- Less stretch over time means the belt keeps correct tension far longer
- The most meaningful durability improvement available for this part
- Cheap insurance relative to being stranded mid-commute
- Stiffer than stock, so tensioning has to be more precise
- ‘Kevlar’ is used loosely by some sellers — buy from a named supplier
- Marginally noisier than a soft rubber belt
eBoardStuff HyperDrive belts
A specialist-shop belt built around a neoprene body with Kevlar reinforcement — the combination that gives you durability without the harshness of a fully rigid belt.
- Neoprene body with Kevlar reinforcement
- Made specifically for the Boosted drivetrain
- Sold by a dedicated electric-skateboard parts shop
- Standard and alternative lengths available
- Supplied in matched pairs
- Neoprene keeps some compliance, so the drive feels smoother than a bare Kevlar belt
- Bought from a shop that only does this, so the sizing advice is reliable
- Consistent quality control compared with marketplace listings
- Costs more than a generic pair
- Specialist shop stock can run out with no restock date
- Shipping may be slower than a mainstream marketplace
BenchWheel replacement belts
One of the longest-running third-party suppliers for Boosted parts, and the pragmatic middle choice on price and quality.
- Fits V2, Mini S, Mini X, Plus and Stealth
- Standard 15mm width
- Available direct and through marketplaces
- Sold in pairs
- Established Boosted-compatible parts range
- Long track record in this specific market, with real user feedback to check
- Sensible price between the cheapest generics and the specialist belts
- Also supplies the other wear parts, so you can order everything at once
- Standard construction rather than a reinforced upgrade
- Availability fluctuates
- Not the longest-lasting option here
Romp Supply ROMP belts
A US specialist supplier that sells belts as part of a complete motor belt kit — the sensible purchase if the board has not been serviced in a while.
- Fits V2, Mini S/X, Plus and Stealth
- Sold individually or as a motor belt kit
- Kits include the hardware needed for the job
- US-based supplier
- Boosted-specific parts range
- The kit format means you are not missing a bolt halfway through the job
- Faster domestic shipping for US riders
- Good option when you are servicing the whole drivetrain at once
- Kit costs more than belts alone if you already have the hardware
- Small supplier; stock and support depend on one business staying open
- Limited international shipping
Boosted V1 replacement belts
The V1 drivetrain is not compatible with anything that came after it. If you are still riding a first-generation board, this is a separate part — do not order the common size.
- Specific to the original Boosted V1 dual-motor board
- Different length and profile from V2-onward belts
- Sold in pairs
- Available from third-party suppliers only
- Fits the V1 pulley set
- The only correct option for a V1; the common 225-3M-15 will not fit
- Still manufactured despite the board’s age
- Keeps a genuinely old board running
- Much narrower supply than the V2-onward size
- Fewer suppliers means less price competition and less quality feedback
- V1 parts availability is shrinking year on year
204-3M-15 belts (46-tooth pulley)
The short belt, for riders who have geared their board for higher top speed with a smaller wheel pulley.
- 204mm length, 3mm pitch, 15mm width
- Matches a 46-tooth wheel pulley
- Taller gearing: higher top speed, weaker hill climbing
- Sold in pairs
- Available from gear-ratio parts suppliers
- The correct length for a 46T conversion — a stock belt simply will not tension
- Higher top speed on flat ground
- Less motor drag at cruising speed
- Noticeably worse hill climbing, which matters more than people expect
- Higher motor current on gradients means more heat and battery drain
- Only correct if you have actually changed the pulley
234-3M-15 belts (63-tooth pulley)
The long belt for a torque-biased conversion. Shorter gearing trades top speed for hill-climbing ability and less motor heat.
- 234mm length, 3mm pitch, 15mm width
- Matches a 63-tooth wheel pulley
- Shorter gearing: more torque, lower top speed
- Sold in pairs
- Common in hilly-city conversions
- Transforms hill performance on a board used in a hilly city
- Lower motor current on climbs means cooler running and better battery life
- Braking authority improves on descents too
- Meaningfully lower top speed
- Requires the matching pulley — this is not a standalone upgrade
- Larger pulley reduces ground clearance
243-3M-15 belts (68-tooth pulley)
The longest common size, for the most aggressive torque conversion. A niche part for steep-hill riders and heavier commuters.
- 243mm length, 3mm pitch, 15mm width
- Matches a 68-tooth wheel pulley
- Maximum torque bias of the common ratios
- Sold in pairs
- Specialist supply
- The strongest climbing setup available on the stock drivetrain
- Best option for heavier riders on steep terrain
- Keeps motor temperature down on sustained climbs
- Top speed drops enough to change how the board feels to ride
- Least common size, so stock is thin
- 68T pulley clearance can be marginal on smaller wheels
Complete belt service kit
Belts plus the pulley hardware, spacers and fasteners. Worth it the first time, because the small parts are what actually strand a repair halfway through.
- Belts with associated drivetrain hardware
- Covers V2, V3, Dual, Plus, Stealth, Mini S and Mini
- Includes fasteners and spacers that wear or get lost
- Sold by several third-party suppliers
- Single-order convenience
- Replaces the corroded and rounded-off fasteners at the same time
- One order rather than three, which matters with fragmented suppliers
- Sensible for a board that has never been serviced
- Costs more than belts alone and much of it may be unnecessary
- Kit contents vary; check exactly what is included
- Redundant if you service the board regularly
Buying tips
- Identify your board before ordering anything. V1 belts are not compatible with anything later. V2, V2 Dual+, V3 Plus, Stealth, Mini S and Mini X share the common size. The board model is printed on the deck or the battery enclosure — check it rather than assuming, because the wrong belt is non-returnable once you have tried to fit it.
- The stock size is 225-3M-15, and it only applies to stock pulleys. That is 225mm long, 3mm tooth pitch, 15mm wide, matched to the 56-tooth wheel pulley. If a previous owner changed the gearing you need 204 (46T), 234 (63T) or 243 (68T) instead. Count the teeth on the wheel pulley if you are unsure — it takes a minute and saves an order.
- Always replace both belts on a dual-motor board. A new belt next to a stretched one puts uneven load through the drivetrain and the old one will fail within weeks anyway. They are sold in pairs for this reason.
- Tension is the thing people get wrong, and both directions cause damage. Too loose and the belt skips teeth under acceleration, which shreds it fast. Too tight and you are loading the motor bearings continuously, which kills the motor — a much more expensive part. You want a small amount of deflection when you press the belt midway between the pulleys, not a guitar string.
- Carry a spare and the tool once you have been stranded once. A snapped belt on a dual-motor board leaves you pushing, and it always happens at the far end of the commute. A pair of belts and the right hex key take up no space in a bag.
- Inspect the pulleys when the belts are off. Worn or chipped pulley teeth will chew through a brand-new belt in a fortnight, and people replace belts repeatedly without ever finding the real cause. If the tooth profile looks rounded rather than square, replace the pulley too.
- Buy from named suppliers rather than the cheapest marketplace listing. With no manufacturer behind these boards, quality control lives entirely with the seller. The specialist shops have reputations tied to a small community and are noticeably more consistent than anonymous listings at half the price.
- Keep the old belts if they are not shredded. A stretched belt that still has intact teeth is a perfectly good emergency spare to get you home. It is not a repair, but it beats walking.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.