⟲ 360° — drag meThe facts.
| Brand | Öhlins |
|---|---|
| Part Number | BM 491 |
| Fitment | BMW R nineT /5 (2019–2020) |
| Road Approval | ABE (Germany) |
| Mounting Position | Hinten |
| Length | 374 +10 / -2 mm |
| Stroke | 53 mm |
| Spring Rate | 140 N/ |
| Piston Diameter | 46 mm |
| Spring Part Number | 21102-54 |
DescriptionThe whole story▼
Every Öhlins part number covers one machine. BM 491 covers the BMW R nineT /5 (2019–2020). The difference shows up in the second half of a fast road, when the standard unit has warmed through.
Key Features
- Gas-pressurised monotube damper with the reservoir integrated into the body
- Fitted spring: Öhlins 21102-54
- Length 374 +10 / -2 mm, set for this chassis
- Direct fitment on the BMW R nineT /5 (2019–2020)
- 53 mm of damper stroke
- Monotube damper layout
- Spring rate 140 N/mm, set against this machine's weight
- Damping piston: 46 mm
Where This Sits in the Öhlins Line-up
Black anodising is applied to the body and reservoir, and the spring is powder-coated black to match. Öhlins introduced Blackline for machines whose own colour scheme fights with yellow-gold. Blackline is the STX 46 with a black-anodised body and black spring rather than the familiar Öhlins gold.
Damping Performance
A 46 mm piston gives the oil a large working area, so the force curve stays flat as temperature rises. 374 +10 / -2 mm of adjustment turns ride height into a setting rather than a fixed dimension. Öhlins identifies the spring as 21102-54. Mounting length is 372/384 mm. Öhlins publishes a baseline setting for each part number, which is the sensible starting point. Compression and rebound are adjusted independently, so support under load can be set without changing how fast the wheel returns.
Construction and Material Quality
Öhlins sets a baseline for each part number on the machine it was developed on, so it works before anything is adjusted. Anodising is hard-coat rather than decorative, which matters on a component exposed to road salt and stone chips. The damper body is hard-anodised aluminium, which resists both corrosion and the thermal cycling a rear shock lives with.
What This Means on the R nineT /5
Heritage bikes are frequently ridden two-up, which exposes a soft standard damper immediately.
Fitment and Compatibility
What follows applies to the BMW R nineT /5 built 2019–2020, which is the machine BM 491 is listed for. Öhlins lists no other machine against this number, so it is not a unit that can be adapted to a neighbouring model.
Road Approval
Road approval: the BMW R nineT /5 is covered by a German ABE for this part number. The certificate is supplied and should stay with the vehicle documents.
Specifications
- Brand: Öhlins
- Part Number: BM 491
- Fitment: BMW R nineT /5 (2019–2020)
- Road Approval: ABE (Germany)
- Mounting Position: Hinten
- Length: 374 +10 / -2 mm
- Stroke: 53 mm
- Spring Rate: 140 N/mm
- Piston Diameter: 46 mm
- Spring Part Number: 21102-54
FitmentWhich bikes this fits▼
- BMW R nineT /5 (2019–2020)
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.