Öhlins Cylinder head TTX36The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21070-23 |
| Category | Cylinder Heads |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Cylinder head TTX36, Öhlins part number 21070-23. The tube is what the whole damper is built around: everything else references its bore.
Key Features
- Öhlins part number 21070-23
- Original Öhlins service part
Function
This position is identified by its number rather than by a dimension. Length here is the working length, not the overall dimension, which is why two similar tubes are not interchangeable. The cylinder is one of the few damper parts that is genuinely wear-limited. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston.
Why the Original
Parts remain available years after a unit leaves the current price list, which is unusual in this trade. Buying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. Service parts are ordered per piece unless stated otherwise. If you are between two sizes, send us the measurement and we will check it against the catalogue.
Getting the Number Right
21070-23 is the Öhlins number for this position — the same one printed in the service documentation. This position has no published dimension, so the part number is the only reliable identifier. The tube carries the end cap threads, so damaged threads mean a new tube rather than a repair. A tube that has been bottomed hard often shows a ring mark; that is a reason to replace it.
Fitting and Setup Service
Öhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.
Specifications
- Brand: Öhlins
- Part Number: 21070-23
- Category: Cylinder Heads
- Country of Origin: Sweden
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