Fitment reference
Honda Grom fitment & service data
A mini built 2014–2026. Use this page to confirm which parts are shared across the run and which change with the model year before you order.
Model data
| Manufacturer | Honda (Japan) |
|---|---|
| Model | Grom |
| Type | Mini |
| Production run | 2014–2026 |
| Model years in database | 13 |
| Latest model year | 2026 |
Category-by-category specs
Generic specs that hold across this model run. Always confirm part numbers against your VIN.
Controls & Levers
Adjustable brake and clutch levers, grips, bar ends and handlebar hardware. Lever reach adjustment is a safety item for smaller hands, not a styling choice.
| Bar diameter | 22mm (7/8in) or 28.6mm (1 1/8in) fat bar |
|---|---|
| Adjustment | Typically 6-position reach |
| Material | Billet 6061 aluminium |
| Install | 25 min · Easy |
Exhaust
Slip-on mufflers and full systems in stainless, titanium and carbon. A slip-on typically saves 2-4 kg and changes the note; a full system is where real power gains and fuelling changes live.
| Fitment type | Slip-on (bolt to stock mid-pipe) or full system |
|---|---|
| Materials | Stainless, titanium, carbon-wrapped |
| Weight saving | 2-4 kg slip-on, up to 8 kg full system |
| Install | 60 min · Moderate |
Lighting
LED headlight assemblies, sequential indicators and auxiliary driving lights. LED conversions cut current draw sharply, which is why indicator swaps usually need resistors or an LED flasher relay.
| Voltage | 12V DC, regulated |
|---|---|
| Indicator load | LED needs 21W resistors or an LED flasher relay |
| Approval | E-mark / DOT for road use |
| Install | 60 min · Moderate |
Chain & Sprockets
X-ring and O-ring chains, front and rear sprockets, sliders and adjuster blocks. Always replace the chain and both sprockets as a set — a new chain on worn sprockets destroys itself in weeks.
| Common pitch | 520 / 525 / 530 |
|---|---|
| Seal type | X-ring outlasts O-ring by roughly 30% |
| Service interval | Clean and lube every 600-800 km |
| Install | 90 min · Moderate |
Brakes
Sintered and organic pads, floating discs and braided lines. Pads and fluid are the two cheapest upgrades that change lever feel more than anything else on a motorcycle.
| Pad compound | Sintered for all-weather bite, organic for quiet low-dust |
|---|---|
| Fluid spec | DOT 4 (DOT 5.1 where specified) — never DOT 5 silicone |
| Disc minimum | Typically 4.0-4.5mm front, stamped on the carrier |
| Install | 45 min · Easy |
Maintenance
Chain cleaning kits, lubricants, paddock stands and workshop consumables. A pair of paddock stands turns most chain and tire jobs from a garage bill into a 20-minute task.
| Rear stand | Spool (8mm/10mm bobbins) or universal cradle |
|---|---|
| Chain lube | O-ring and X-ring safe |
| Torque range | 20-100 Nm covers most chassis fasteners |
| Install | 0 min · Easy |
Parts that are year-specific on this bike
- Bodywork and fairing panels — moulded per generation, never cross-generation
- Seat pans and cowls — latch positions change with refreshes
- Wiring, ECU and lighting connectors — often revised mid-run
- Brake master cylinders and lever fitment — check the assembly, not the model name
Torque reference for common jobs
General ranges by thread size for the fasteners on this bike. Confirm the exact figure in the service manual for your model year before final tightening.
| Thread | Tool | Steel | Alloy | Where you meet it |
|---|---|---|---|---|
| M5 | 4 mm hex / 8 mm | 5–7 Nm | 4–5 Nm | Fairing bosses, instrument brackets, small covers |
| M6 | 5 mm hex / 10 mm | 9–12 Nm | 7–10 Nm | Engine covers, sprocket cover, heat shields, light brackets |
| M8 | 6 mm hex / 12–13 mm | 22–26 Nm | 18–22 Nm | Caliper mounts, disc bolts, footpeg hangers, exhaust hangers |
| M10 | 8 mm hex / 14–17 mm | 40–50 Nm | 32–40 Nm | Fork clamp bolts, rear sprocket nuts, shock mounts, engine mounts |
| M12 | 10 mm hex / 19 mm | 75–90 Nm | 60–72 Nm | Front axle, front sprocket nut, swingarm pivot bolts |
| M14 | 22 mm | 115–135 Nm | 95–110 Nm | Rear axle nut on mid-size bikes, some swingarm pivots |
| M16 | 24 mm | 170–200 Nm | 140–165 Nm | Rear axle nut on large bikes, steering-stem nut on some models |
Per-job figures and the full chart: motorcycle torque reference.
Getting the torque right
- Torque figures assume clean, dry, undamaged threads. Oil on a thread can raise the real clamping load by 20% or more at the same wrench reading.
- Where the manual calls for thread-lock, the figure is a wet figure — apply the locker, then torque immediately before it cures.
- Tighten in two passes: to roughly 70% of the figure across all fasteners, then to the full figure in the same order.
- Replace, never reuse, any fastener specified as stretch-to-yield, and always fit a fresh crush washer on a drain plug.
What each job costs on the Honda Grom
Brake pad replacement
0.8 h shop labour · Easy DIY
Chain and sprocket kit replacement
1.5 h shop labour · Moderate DIY
Front and rear tire replacement
1 h shop labour · Advanced DIY
Oil and filter service
0.7 h shop labour · Easy DIY
Fork seal and oil replacement
2.5 h shop labour · Advanced DIY
Slip-on exhaust fitting
1 h shop labour · Moderate DIY
Battery replacement
0.5 h shop labour · Easy DIY
Fairing panel replacement
3 h shop labour · Moderate DIY
Shop parts for the Honda Grom
By model year
2026 Grom
Everything that fits
2025 Grom
Everything that fits
2024 Grom
Everything that fits
2023 Grom
Everything that fits
2022 Grom
Everything that fits
2021 Grom
Everything that fits
2020 Grom
Everything that fits
2019 Grom
Everything that fits
2018 Grom
Everything that fits
2017 Grom
Everything that fits
2016 Grom
Everything that fits
2015 Grom
Everything that fits