21-Tooth Gear Design
Honda identifies this component as a 21-tooth kick-starter pinion. The tooth count is part of the official catalog name and provides an important identification detail when selecting the correct replacement.
Honda · Genuine OEM Part
The Honda PINION, KICK STARTER (21T) is the toothed pinion used within the kick starter spindle assembly. Its 21-tooth designation identifies the gear configuration used in the starter mechanism. Honda parts-fiche listings identify this part by number 28211-086-700 and show it as a separately serviced component with a required quantity of one. The Honda catalog description should be retained when ordering to distinguish this pinion from the adjacent starter-drive ratchet and kick-starter spindle.
Honda identifies this component as a 21-tooth kick-starter pinion. The tooth count is part of the official catalog name and provides an important identification detail when selecting the correct replacement.
The pinion belongs to the kick starter spindle assembly, where it works alongside the starter-drive ratchet, spindle, springs, washers, rings and retaining hardware shown in the Honda parts fiche.
Part number 28211-086-700 identifies the pinion itself rather than the neighboring starter-drive components. Using the complete Honda number helps prevent confusion with visually related parts in the same assembly.
Honda parts-fiche and catalog references consistently list 28211-086-700 as PINION, KICK STARTER (21T). The part is shown as item 1 in the kick starter spindle assembly and is specified at one required piece per assembly. No published material, finish, dimensions or directional position were found in the reviewed sources, so those details are not assigned here.
| Honda Part Number | 28211-086-700 |
|---|---|
| Honda Catalog Description | PINION, KICK STARTER (21T) |
| Part Type | Pinion |
| Assembly | Kick Starter Spindle |
| Tooth count | 21T |
| Required quantity | 1 per assembly |
| Model | Type | Model Years |
|---|---|---|
| CRF50F | Motorcycle | 2004–2009, 2011–2012 |
| CRF70F | Motorcycle | 2004–2009, 2011–2012 |
| CT70 | Motorcycle | 1991–1994 |
| PASSPORT (C70) | Motorcycle | 1980–1983 |
| TRAIL 70 (CT70) | Motorcycle | 1979–1982 |
| XR50R | Motorcycle | 2000–2003 |
| XR70R | Motorcycle | 1997–2003 |
| Z50R | Motorcycle | 1993–1999 |
Model applications as listed in Honda's dealer parts catalog for part number 28211-086-700.
Verify the Honda OEM part number for your specific model before ordering.
Compatible motorcycles, ATVs & side-by-sides
Verify your vehicle's model, year and specific configuration before ordering.