
The facts.
| Brand | K-Tech |
|---|---|
| Part number | GBS-003 |
| Fitment | Yamaha YZF-R3 (2019–2026) |
| Inner diameter | 37.00 mm |
| Outer diameter | 41.00 mm |
| Height | 12.00 mm |
| Wall thickness | 2.00 mm |
| Material | Hardened steel with copper and PTFE coating |
| Quantity | 2 fork slide bushes |
DescriptionThe whole story▼
Keeping your Yamaha YZF-R3's forks smooth and precise through everyday commutes and weekend rides starts with the right slide bushes. The K-Tech GBS-003 fork slide bush kit is a direct, exact-fit replacement for the YZF-R3 (2019–2026), manufactured from hardened steel with copper and PTFE coatings that dramatically reduce friction, resist corrosion, and restore the fork's original responsive feel — all at a price that makes proper maintenance straightforward.
Key Features
- Exact fitment for the Yamaha YZF-R3 (2019–2026) — no modification required
- Hardened steel construction with copper underlayer for strength and corrosion resistance
- PTFE-coated contact surfaces minimise friction and deliver a smoother, more consistent fork action
- Protects against premature wear on both the bush and fork tube
- Supplied as a complete two-piece set covering both fork legs in a single purchase
Why Replacing Fork Slide Bushes Matters
Worn fork slide bushes are one of the most common and most overlooked causes of vague, notchy front-end feel. As the bushes degrade, the fork internals develop play, leading to imprecise steering feedback and uneven damping response. For a rider using the YZF-R3 day to day, fresh K-Tech GBS-003 bushes restore the light, linear fork action the bike was designed to deliver — a noticeable improvement on every road.
Construction and Materials
K-Tech manufactures the GBS-003 from hardened steel with a copper intermediate coating that bonds the PTFE surface layer securely and provides a secondary barrier against moisture ingress. The PTFE face is the key to the kit's low-friction performance: it allows the fork slider to move with minimal resistance under load, reducing the stiction that causes the front end to feel wooden or abrupt over small bumps. The result is a fork that tracks more faithfully on uneven surfaces and responds more immediately to rider inputs.
Fitment and Compatibility
These bushes are designed exclusively for the following model:
- Yamaha YZF-R3 — model years 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
They are not compatible with any other Yamaha model or year range. Installation should be carried out by an authorised K-Tech service centre using the appropriate specialist tools, ensuring the bushes are seated correctly and the fork assembly is returned to its full working specification.
Specifications
| Parameter | Value |
|---|---|
| Inner diameter | 37.00 mm |
| Outer diameter | 41.00 mm |
| Height | 12.00 mm |
| Wall thickness | 2.00 mm |
| Material | Hardened steel with copper and PTFE coating |
| Quantity | 2 bushes (complete set) |
| Part number | GBS-003 |
| Fitment | Yamaha YZF-R3 (2019–2026) |
What's includedEverything in the box▼
- 2x K-Tech fork slide bushes
FitmentWhich bikes this fits▼
- Yamaha YZF-R3 (2019–2026)
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.