Öhlins Piston 69/48The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21501-04 |
| Category | Pistons |
| Dimension A | 69 mm |
| Dimension B | 48 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Piston 69/48, Öhlins part number 21501-04. Valves and needles set the adjustable part of the damping; the piston sets the rest.
Key Features
- Dimension B 48 mm
- Öhlins part number 21501-04
- Dimension A 69 mm
- Original Öhlins service part
Where It Sits
Öhlins gives it as 69 mm, 48 mm; nothing about that is approximate. Öhlins uses a piston band rather than metal-to-metal contact, which is what keeps the bore intact. Port area and shim seat geometry decide the damping curve before any adjuster is touched. The piston carries the shim stacks and meters the oil through its ports.
Original Öhlins Part
Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. Rebuilding to specification only works if the parts are to specification — that starts here. Order by part number — descriptions repeat across sizes, numbers do not. Service parts are ordered per piece unless stated otherwise.
Identifying the Right Part
If the unit is already open, compare the dimensions below with the part in your hand before ordering 21501-04. dimension a 69 mm, dimension b 48 mm is what distinguishes this number from its neighbours in the range. Öhlins uses a piston band rather than metal-to-metal contact, which is what keeps the bore intact. The piston carries the shim stacks and meters the oil through its ports.
Fitting and Setup Service
Ask us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.
Specifications
- Brand: Öhlins
- Part Number: 21501-04
- Category: Pistons
- Dimension A: 69 mm
- Dimension B: 48 mm
- Country of Origin: Sweden
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