14 Must-Have STACYC Upgrades and Accessories for Every Rider
STACYCs are great out of the box, but they really come alive once you start adding the right upgrades. The aftermarket and accessory ecosystem for STACYC bikes has grown dramatically over the past few years, and choosing the right parts can mean the difference between a bike your kid grows out of in one season and one they ride into the ground.
This guide breaks down the 14 best STACYC upgrades and accessories worth the money in 2026. We organized them by category so you can jump straight to what your bike needs, whether that's a real performance bump, better fit for a growing rider, a custom look, or just smarter storage and transport.
Every product in this list is available at AOMC.mx, an authorized STACYC dealer carrying the full lineup of bikes, parts, and accessories.
How We Picked the Best STACYC Upgrades
Not every aftermarket part is worth your money. We picked products that meet a clear standard.
- Real Performance Impact — measurable improvement in power, durability, or ride quality
- Safety & Control — upgrades that genuinely improve a young rider's control over the bike
- Durability — built to handle aggressive riding and the rough handling that comes with kids
- Compatibility — works across multiple STACYC models when possible
- Value — priced fairly for what it delivers
Performance Upgrades
This Category Is For:
Aggressive riders who have outgrown the stock setup, parents whose kids are riding harder and faster, and families starting to take their STACYC to the track or trails.
Best Power Upgrade
1. STACYC Brushless Motor & ESC Upgrade Kit
Older STACYC bikes shipped with a brushed motor and the older controller. The brushless motor and ESC upgrade kit converts a brushed bike to the newer high-output brushless system, with over 20 percent more power at peak RPM and a drastic increase in bottom-end torque. The kit includes the brushless motor and controller, vented side panels, and the gearbox and transmission. It's a bigger investment than other upgrades, but the performance jump is real.
Best For
Owners of older brushed STACYCs who want modern brushless performance without buying a new bike
Shop The Brushless Kit →
Best Drivetrain Upgrade
2. STACYC 90 Degree Gearbox Upgrade Kit
The 90 degree gearbox upgrade kit uses machined gears with larger teeth, giving them deeper engagement and more surface area than the stock plastic gearbox. STACYC and major retailers describe it as designed for "more aggressive" riders, and owner reviews on multiple sites consistently note it addresses a known weak point on the older 12 and 16 eDRIVE drivetrains. If your kid rides hard, this is one of the most effective performance and durability upgrades available.
Best For
Aggressive 12 or 16 eDRIVE riders, motocross-style use, kids who push their bikes hard
Shop The Gearbox →
Best Gearing Mod
3. STACYC 13T Sprocket
A sprocket swap is the cheapest way to change how your STACYC rides. The stock 11T sprocket gives the bike strong acceleration, but a 13T sprocket gives up some launch and trades it for higher top speed. Great for older, heavier kids who are bumping up against the bike's top end.
Best For
Kids who want more top end and have already mastered the stock setup
Shop The 13T Sprocket →
Best Tire Upgrade
4. Vee Speedster Gum Tire (16eDRIVE)
Tires are an underrated upgrade on a STACYC. The Vee Speedster gum tire for the 16eDRIVE swaps the stock tire for a softer gum compound, which gives noticeably better grip on dry surfaces. For kids riding hard or starting to lean into corners, the extra traction translates directly to confidence.
Best For
Aggressive 16eDRIVE riders, kids learning to corner, anyone wanting better grip on dry surfaces
Shop The Speedster Tire →
Best Chain Upgrade
5. STACYC Chain Upgrade (18eDRIVE)
For 18eDRIVE riders, the STACYC chain upgrade is a smart durability move. The upgraded chain handles harder riding better than the stock chain and is one of the cheaper ways to extend the life of the bike's drivetrain. Easy to install, big difference for kids who actually ride.
Best For
18eDRIVE owners, especially aggressive young riders who chew through stock chains
Shop The Chain Upgrade →
Battery & Power
This Category Is For:
Families who want longer ride times, faster charging, or a backup battery so the fun doesn't stop. Battery upgrades are some of the most-searched STACYC accessories online for good reason.
Best Battery Upgrade
6. STACYC 20vMAX 5Ah Spare Battery
The 5Ah spare battery extends ride time compared to the stock pancake battery, and having a second pack means swapping in for non-stop riding. Compatible with both the 12eDRIVE and 16eDRIVE charging systems. Spare batteries are one of the most-searched STACYC accessories for good reason.
Best For
Any STACYC family who wants more ride time per session
Shop The 5Ah Battery →
Best Charger Upgrade
7. STACYC 36V Fast Battery Charger
The 36V fast charger cuts charging time substantially compared to the stock charger. For families with one battery and lots of riding to do, the fast charger means less waiting between sessions. Works with both 3Ah and 6Ah STACYC batteries.
Best For
Families with one battery and lots of riding sessions
Shop The Fast Charger →
Comfort & Control Upgrades
This Category Is For:
Growing kids. One of the most common complaints with stock STACYCs is the fit, riders outgrow it. These upgrades extend the life of the bike and improve real-world control as kids get bigger and more confident.
Best Growing Rider Upgrade
8. STACYC Extended Footrest (12/16eDRIVE)
Stock STACYC footrests are short, and kids outgrow them fast. The extended footrest kit adds more foot space and improves stability for taller or more aggressive riders learning proper standing-riding position. A common upgrade in the STACYC community.
Best For
Taller kids, kids learning to ride standing, anyone outgrowing the stock footrest
Shop The Footrest Kit →
Best Handlebar Upgrade
9. STACYC 19mm Bar Riser Kit (12/16eDRIVE)
Raises handlebar height by 19mm. The bar riser kit is a smart upgrade for kids who have outgrown the stock cockpit but aren't ready for a bigger bike. Bar risers improve posture, give a more natural standing position, and make the bike feel more like the motocross bikes kids progress into. Small change, big difference.
Best For
Growing riders, kids developing motocross-style standing position
Shop The Bar Riser Kit →
Style & Custom Look
This Category Is For:
Kids who want their bike to look like the bikes their favorite riders ride. Graphics are the easiest way to make a STACYC feel like it belongs to the rider, not just a generic kids' bike.
Best Aftermarket Graphics
10. D'Cor Visuals Graphics Kit
D'Cor Visuals is one of the most respected names in motocross graphics. Their STACYC graphics kit uses the same 15-mil moto-grade vinyl they put on full-size dirt bikes, made to fit both 12 and 16 inch eDRIVE models. Made in the USA. If you want graphics that look like they came off a real factory race bike, this is it.
Best For
Motocross families who want real moto-grade graphics, not generic stickers
Shop D'Cor Graphics →
Best Harley-Davidson Graphics
11. STACYC H-D Iron Revelation Graphic Kit (Gray)
For families who want a Harley-Davidson-themed look (STACYC is HD-owned, after all), the H-D Iron Revelation Graphic Kit in Gray brings official Harley styling to the bike. A clean, factory look that ties the STACYC to the broader HD ecosystem. Easy peel-and-stick install.
Best For
Harley families, parents who want a clean factory-style look
Shop The HD Gray Kit →
Best Apparel Pick
12. STACYC Kids Long Sleeve Logo Tee (Black)
Not every upgrade has to be mechanical. The STACYC kids long sleeve logo tee lets your young rider show off the brand on and off the bike, with a large logo across the front and bolt graphics down the sleeve and across the back. A simple way to make a kid feel like part of the STACYC crew.
Best For
Kids who want to rep the brand, easy gift idea, pairs well with any STACYC purchase
Shop The Logo Tee →
Transport & Safety
This Category Is For:
Families who haul their STACYC to the track, to grandma's house, or to riding buddy's yards. And, importantly, every STACYC family needs a properly fitted helmet for their rider.
Best Transport Accessory
13. STACYC Standard Carry Bag
The STACYC standard carry bag protects the bike during transport and keeps it clean in the truck, trailer, or SUV. For families heading to tracks, riding spots, or family events, a carry bag means the bike shows up looking like it left, without scratches or rubber marks all over the back seat.
Best For
Families who travel with their STACYC, anyone who wants to protect their investment
Shop The Carry Bag →
Best Safety Gear
14. STACYC HD Sanction Youth Helmet
No STACYC upgrade matters more than the helmet on your kid's head. The STACYC HD Sanction helmet is purpose-built for young riders — proper youth sizing, full-coverage design, and the Harley-Davidson Sanction styling that matches the bike. If your kid doesn't have a helmet that fits, this should be the first thing you buy.
Best For
Every STACYC rider. Non-negotiable safety gear.
Shop The Helmet →
How to Choose the Right Upgrades for Your STACYC
Not every STACYC needs every upgrade. The right approach depends on your kid's riding style, age, and skill level.
If your child is just starting out, focus on safety and confidence first. A properly fitting helmet is non-negotiable, a spare battery means longer sessions, and the basic STACYC accessories will cover most needs.
If your child is riding aggressively and starting to push the bike's limits, prioritize durability and performance: the 90 degree gearbox and a sticky tire upgrade are the two biggest improvements for the dollar. A spare battery is a close third.
If your child is outgrowing the stock fit, the bar riser kit and extended footrests are the two upgrades that buy you another season of riding before you need to size up.
For help choosing the right size STACYC in the first place, see our STACYC Size Guide. You can also browse the full STACYC bikes lineup at AOMC.
Frequently Asked Questions
Can you make a STACYC faster?
Yes. The two most common ways to make a STACYC faster are swapping to a larger sprocket (13T gives more top end but less acceleration), and upgrading from a brushed motor to the brushless motor and ESC kit. The brushless motor upgrade is the bigger performance gain, delivering more power and thermal protection.
Are STACYC upgrades worth it?
It depends on how your kid rides. For aggressive riders, the 90 degree gearbox is a worthwhile upgrade because the stock plastic gearbox is a known weak point. For growing riders, the extended footrest kit and bar riser kit extend the bike's useful life by a season or more. A spare battery is worth it for almost every family.
What battery does a STACYC use?
STACYC bikes use 36V Lithium-ion batteries. The stock 12eDRIVE and 16eDRIVE come with 3Ah batteries, and the 18eDRIVE and 20eDRIVE come with larger 6Ah batteries. The 5Ah 20vMAX battery is a popular upgrade because it extends ride time compared to the stock 3Ah pack.
Do you need a helmet for a STACYC?
Yes. Every STACYC rider should be wearing a properly fitted youth helmet. AOMC carries the STACYC HD Sanction helmet designed specifically for young riders. A helmet is the single most important piece of safety gear and should be the first purchase along with the bike.
Where can I buy aftermarket STACYC parts?
AOMC.mx carries the full lineup of authentic STACYC accessories, replacement parts, and aftermarket upgrades from brands like D'Cor Visuals and Vee Tires. As an authorized STACYC dealer, AOMC has direct access to factory parts and warranty support.
Shop The Full STACYC Accessories Lineup
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