BMW K100 / K75 Wheel – Brake Disc / Rotor Adapter Kit

$485.00 AUD

In Stock

All new custom designed plug and play kit that lets the front BMW K 100 / K75 wheel be fitted with modern upside-down forks. The kit swaps out the old brake discs / rotors and replaces them with new modern brake discs to suit (310, 320 or 330mm). This easy to install modification will instantly change the performance, look and feel of your custom K100 or K75 Cafe Racer, tracker, scrambler etc.

Note that the current kits are plug and play available for:

  1. Honda CBR 929 /954/1000 RR from 2000 to 2007 forks.
  2. Yamaha R1 from 2004 to 2014 forks.
  3. Suzuki GSXR 600/750/1000 from 2005 to 2014 forks.

Please note that this kit is plug and play with our Fork Conversion Kits or other Triple Trees with 214mm fork centre to centre spacing.

Refer to the specifications below for additional information regarding fitment, application and compatibility.

E.g. 1983 BMW K100
E.g. 2006 Honda CBR 1000RR, or 2007 Suzuki GSXR 1000, or 2014 Yamaha R1 etc.
Optional - Choose from 310mm, 320mm, or 330mm Rotors.
Base Price
Grand Total
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Extra Strong Helicoil threaded Disc/Rotor Mounting Points

All our fork conversion and rotor adapter kits are designed to not only look and feel good but also be durable and practical. That’s why the brake discs / rotors are fixed into stainless helicoil threaded mounting points.

Slim-line Design

Our designs keep in mind function and form. The adapters therefore blend into the original space to make it look as original and slim as possible. Let the wheel and your imagination do the talking!

All New Custom Titanium M6 Bolts

Grade M6 Titanium mounting bolts with a wide flanged socket head type to add to the already slim and sexy design that these kits were renowned for. JAX Garage is always looking to improve it’s product line, and with this new addition the rotor adapter kits have never looked better.

Install Video / Guide

Check out the Install guide created by our ambassador @baycityrestoration.

YouTube video

Product Fitment

This kit is designed to be installed with our 6 or 7 series fork conversion kits. It can also be installed with CBR or other triple trees that have 214mm fork centre to fork centre spacing. Note that this is regardless of whether the forks used are Honda, Suzuki, Yamaha or other, the spacing needs to be 214mm for the kit to work as intended.

Compatible with all BMW K Series (1980’s – 1990’s) that utilise the original K series snowflake wheel (front and back). ** This kit will not work on later K models with a trispoke wheel.

It is also Compatible with all BMW R series wheels that are identical to that of the K series snowflake profile and hub typically manufactured in the 1980’s.

This kit is compatible with the following forks as a minimum:

  • Honda CBR 929 RR (2000-2001),
  • Honda CBR 954 RR (2002 -2003),
  • Honda CBR 1000RR (2004-2007).
  • Yamaha R1 (YZF-R1) (2004 – 2014).
  • Suzuki GSXR – 600/750 – (2005-2014)
  • Suzuki GSXR – 1000 – (2005-2014)

Brake Disc / Rotor Requirements:

  • This kit is only compatible with Honda CBR 929 RR , 954 RR or 1000 RR brake discs/ rotors between 2000 – 2007 or equivalent aftermarket options. This requirement is applicable if you install Honda, Yamaha or Suzuki forks to your build. The Honda CBR brake discs / rotors specified above must be used or the kit will not work. We offer the adapter kit, and also offer equivalent brake discs / rotor sizes of 310mm, 320mm and 330mm. If you choose a Yamaha or Suzuki option kit you need to determine what diameter rotors you require (310, 320, or 330mm).

What comes in the box?

This kit comes with the following:

  • 6061 T6 Aluminium Rotor Adapters x2.
  • Rotor Spacers – Depending on your selected kit (e.g. CBR – Yamaha – Suzuki).
  • 12 x Titanium flanged cap head bolts (M6 x 1.0mm)
  • Axle Spacers – Depending on you selected kit (e.g. CBR – Yamaha – Suzuki).
  • S3 Performance Brake Discs to match (310mm, 320mm or 330mm)  – If option is selected

Material: 6061 T6 Aluminium

Additional Information & Disclaimer


Modifying vehicles is a specialist task and requires the knowledge and experience of competent individuals to be conducted safely, particularly where vehicle performance may change from the original specification. There is an element of risk associated with any modification and it is up to you to ensure these risks are minimised and taken into account. Further, some components may not be suitable for installation as a result rules and regulations. It is your responsibility to ensure that all legal requirements are met, relevant to your country and/or jurisdiction. JAX Garage takes no responsibility for any damage or injury as a result of any component or vehicle modification.

Weight 2.95 kg
Dimensions 38 × 34 × 12 cm

Jax Garage


BMW K100, BMW K1100, BMW K75

Adapter Kit

Honda CBR 929/954/1000 RR Forks, Yamaha R1 Forks, Suzuki GSXR 600/750/1000 Forks

Brake Disc / Rotor Options

None (I'll source my own), 310mm, 320mm, 330mm

Customer Photos


Customer Reviews
5.0 Based on 3 Reviews
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Rene Z.


Verarbeitung des Atapterset ist wirklich top, und sieht genauso aus wie angeboten. In Kombination mit den Bremsscheiben wirklich ein Highlight. Schade daß das Gute immer so weit entfernt liegt!????????

M E.

Too easy

Along with my fork conversion kit , i purchased this , so i could retain my original front wheel . It looks awesome , and was a breeze to fit .


Exactly What You Would Expect - Perfect

I purchased these with my fork conversion kit and couldn't be more happy with my decision. I worked with Jas directly to ensure fitment on my particular set of forks. Once parts were received, everything bolted up and fit with absolutely no hiccups. I look forward to working with Jas in the future.