The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 01092-29 |
| Spring Rate | 90 N/mm |
| Free Length | 170 mm |
| Inner Diameter | 57 mm |
| Stroke | 82 mm |
| Construction | Straight |
| Finish | Powder-coated yellow |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Öhlins part number 01092-29 is a shock absorber spring rated at 90 N/mm, 170 mm long with a 57 mm inner diameter. Adding a pillion or luggage changes the load enough that the standard rate stops working.
Key Features
- Straight-wound, constant rate
- Öhlins part number 01092-29
- Inner diameter 57 mm
- Measured spring rate 90 N/mm
- Free length 170 mm
- 82 mm of usable stroke
- Powder-coated yellow
How Öhlins Makes Them
Rates are offered in defined steps, so a change can be made in one direction at a time. Every unit is dyno-tested against the curve held for its part number, not sampled from a batch. The unit is rebuildable: seals, shims and oil are catalogue items, not a reason to buy a new one.
Size and Rate
Dimensionally this is a 57 mm × 170 mm spring; within that envelope Öhlins offers a range of rates, and this one is 90 N/mm.
What This Rate Does
A firm rate keeps the fork high in its stroke under braking, which preserves the geometry when the front is loaded hard. A firm rate holds the chassis attitude when the front or rear is loaded hard. Firm rates trade some small-bump comfort for support — the right trade on a good surface at speed. A road machine spends most of its life in the first third of the fork's travel — that is the part the rate governs.
What the Rear Spring Decides
Progressive springs change rate through the stroke, which suits machines with little travel and a lot of load. Öhlins sells rear springs separately precisely because rider weight varies more than machine weight does. Öhlins supplies most of its shocks without a spring precisely so the rate can be matched to the rider rather than averaged.
Applications
Öhlins offers rates in defined steps so a change can be made in one direction at a time rather than by guesswork. Selection is by measurement. If the diameter and free length match your fork, the remaining question is the rate. This spring is chosen by its dimensions rather than by motorcycle model: check inner diameter, free length and rate against the fork it is going into.
Fitting
Rate and preload are separate adjustments: get the rate right first, then set sag with preload. Work on both legs in one session so the fork stays symmetrical. Öhlins states the oil and the air-gap for this application — both are part of the setting, not a detail.
Road Approval
Road approval: not applicable to the spring on its own. Öhlins issues approvals against complete suspension units, not individual springs.
Fitting and Setup Service
Öhlins suspension rewards careful fitting. We recommend having the work done by an authorised Öhlins service centre — and we are one ourselves: we fit, service and set up Öhlins components in house. If you would like us to handle the installation, just ask and we will quote it with the order.
Specifications
- Brand: Öhlins
- Part Number: 01092-29
- Spring Rate: 90 N/mm
- Free Length: 170 mm
- Inner Diameter: 57 mm
- Stroke: 82 mm
- Construction: Straight
- Finish: Powder-coated yellow
- Country of Origin: Sweden
FitmentWhich bikes this fits▼
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