The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 66514-140 |
| Spring Rate | 140 N/mm |
| Free Length | 140 mm |
| Inner Diameter | 46 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Öhlins part number 66514-140 is a shock absorber spring rated at 140 N/mm, 140 mm long with a 46 mm inner diameter. Adding a pillion or luggage changes the load enough that the standard rate stops working.
Key Features
- Öhlins part number 66514-140
- Free length 140 mm
- Inner diameter 46 mm
- Measured spring rate 140 N/mm
Manufacture and Tolerance
Production has stayed in Sweden since the company was founded in 1976. The wire is progressively wound where the application calls for it and straight where it does not. Every unit is dyno-tested against the curve held for its part number, not sampled from a batch.
The Numbers That Matter
Öhlins holds the free length at 140 mm and the inner diameter at 46 mm across this rate range, so moving up or down a rate changes nothing about the installation.
Choosing 140 N/mm
A firm rate keeps the fork high in its stroke under braking, which preserves the geometry when the front is loaded hard. If the suspension bottoms out or the geometry collapses under load, this is the direction to go. Firm rates trade some small-bump comfort for support — the right trade on a good surface at speed. Road surfaces are the hardest test of a spring rate, because the fork has to cope with both a smooth stretch and a broken one.
How a Rear Spring Works
Öhlins supplies most of its shocks without a spring precisely so the rate can be matched to the rider rather than averaged. Adding a pillion or luggage changes the rear load enough that the standard rate stops working properly. Rear spring rates run in the tens or hundreds of N/mm because the spring sits at the short end of that lever, not at the wheel.
Applications
Selection is by measurement. If the diameter and free length match your fork, the remaining question is the rate. The safest way to choose is by static sag: set the target figure, and the rate follows from whether you can reach it with preload. Ask us with the machine and rider weight and we will tell you which rate in this size to take.
Installation
Once fitted, ride the machine before making damping changes: the new rate alters what the clicks do. If the fork has not been serviced recently, bushes and seals are worth replacing while it is apart. Preload spacers usually need shortening or lengthening so the installed length stays correct.
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
Fitting matters as much as the part. We are an authorised Öhlins service centre and carry out installation, servicing and setup ourselves — get in touch and we will arrange it alongside your order.
Specifications
- Brand: Öhlins
- Part Number: 66514-140
- Spring Rate: 140 N/mm
- Free Length: 140 mm
- Inner Diameter: 46 mm
- Country of Origin: Sweden
FitmentWhich bikes this fits▼
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.