Öhlins Fork Springs 6.5 N/mm / 370 mm / Ø 25.5 mm
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number04798-65
Spring Rate6.5 N/mm
Free Length370 mm
Inner Diameter25.5 mm
Packaging UnitPair
Country of OriginSweden
DescriptionThe whole story▼

Öhlins part number 04798-65 is a pair of fork springs rated at 6.5 N/mm, 370 mm long with a 25.5 mm inner diameter. Under braking a soft spring lets the fork run through its stroke and the geometry with it.

Key Features

  • Free length 370 mm
  • Öhlins part number 04798-65
  • Supplied as a pair
  • Inner diameter 25.5 mm
  • Measured spring rate 6.5 N/mm

Manufacture and Tolerance

Every unit is dyno-tested against the curve held for its part number, not sampled from a batch. Service parts stay available for years after a part number leaves the current price list. Two units carrying the same part number behave the same way out of the box, which is the whole point of testing each one.

The Numbers That Matter

Öhlins holds the free length at 370 mm and the inner diameter at 25.5 mm across this rate range, so moving up or down a rate changes nothing about the installation.

What This Rate Does

Rates in this range suit lighter riders and machines that spend their time on real roads rather than smooth circuits. A soft rate favours grip and comfort over support: the fork moves early, which keeps the tyre loaded on a poor surface. Comfort and grip come from the spring moving early; this is the end of the range where that happens. Ride quality on the road is decided by rate first and damping second.

Applications

Öhlins builds springs to dimensions rather than to model lists, so the question is always the same: does the diameter fit, does the length fit, and is the rate right for the rider? 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. A workshop will pick this spring from its dimensions and the rider's weight, not from a fitment table.

Fitting

The job needs no special tools beyond a fork spring compressor and a measuring rod for the oil level. Öhlins states an air gap for this application, and that figure is part of the setting rather than a detail. Öhlins states the oil and the air-gap for this application — both are part of the setting, not a detail.

Road Approval

Road approval: no separate certificate. The spring changes the rate, not the construction of the fork, and is treated as a service part.

Fitting and Setup Service

This is not a part to rush. Öhlins recommends installation by an authorised service centre, and we are an authorised Öhlins service centre — fitting, servicing and setup all happen here. Get in touch if you would like the work done with the order.

Specifications

  • Brand: Öhlins
  • Part Number: 04798-65
  • Spring Rate: 6.5 N/mm
  • Free Length: 370 mm
  • Inner Diameter: 25.5 mm
  • Packaging Unit: Pair
  • Country of Origin: Sweden
FitmentWhich bikes this fits▼
    07 · Support

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