Captive wheel spacers and custom bushes
Stop struggling with loose parts and poor fitment. We provide high-end Captive Wheel Spacers for effortless wheel changes and custom-made bushes for every unique project.
Take a closer look
Stay-In-Place Captive Design
A machined lip clips securely behind the dust seal, locking the spacers into the hub. No more spacers dropping in the dirt—just fast, hassle-free wheel changes and maintenance every time.
Custom Configurable Geometry
Can’t find the right fit in a standard catalog? We engineer it. Tailored dimensions ensure a perfect fit for any unique racing build, fork swap, or custom wheel configuration.
High-Precision Fitment
Machined to strict tolerances for perfect alignment. Eliminates factory "slop" and vibrations, giving your bike a solid, planted feel on the road or track.
Performance-Driven Engineering
We replace standard factory parts with superior solutions. Built from professional engineering experience to ensure every component exceeds OEM standards for reliability and fit.
Premium Finish & Colors
Featuring a deep hard-anodised surface for maximum durability. This layer protects the 6082-T6 alloy against wear from grit and axle friction while providing a clean, professional look.
Significant Weight Reduction
Machined from high-strength 6082-T6 aluminium, our parts are up to 60% lighter than OEM steel. Reducing unsprung weight directly improves your suspension response and overall handling.
Precision in Practice
Take a closer look at how our components integrate into real-world builds. From high-performance track bikes to unique custom projects, these images show our spacers and bushes doing exactly what they were designed for: providing a perfect, seamless fit.
Join the Development Program
Is your bike "not supported" by mainstream catalogs? We’re changing that.
We are committed to providing high-performance captive wheel spacers for the entire motorcycle community. Whether you're running a vintage racer, a unique fork conversion, or a one-off custom build, we believe your machine deserves professional-grade engineering.
While the mainstream market often ignores non-standard models, we prioritize them. We are actively expanding our technical database and we need your input to set the new standard.
Why collaborate with us?
Comprehensive Support: We focus on the models that others leave behind.
Tailored Precision: The ideal solution for unique builds and custom offsets.
Direct Engineering: You provide the data; we provide the exact fitment.
Challenge our database: Do you have a machine or a project that isn't supported by the standard catalogs? Let’s get it measured and engineered.
Born in the workshop
At Tulmo, our products come from personal experience. We know the frustration of wheel spacers falling out just as you’re trying to align an axle—a small design flaw that makes a simple job unnecessarily difficult.
We decided to fix that. By engineering spacers that stay in place and custom bushes for unique projects, we ensure your build works exactly as it should. No "universal" compromises, just precision.
Founded in 2020 by Leon, a mechanical engineer and rider, Tulmo is built on a passion for technical innovation. Alongside the ongoing development of our modular motorcycle wheels, we provide a high-end range of precision components.
Based in Salland, The Netherlands, we keep things down-to-earth. No grey areas or complex layers—just transparent engineering and a personal connection with the riders we build for.
Top questions answered
Hit the configure now button on top of our website, and start configuring your bushes. After completion, add it to your cart.
After ordering your products, we create a quote for you. Production and delivery starts after you approve the quote.
Thank you for showing interest in our products! After ordering in our webshop, we will reach out to you with a personalised quotation. After approving the quotation, we will continue processing your order.
That is correct, but don't worry. We'll receive your order, and in the quote you will see the correct prices.
Due to the structure of our database, we can't disable the price. For now, this is the best solution for our workflow.
Go to the development section of this page, and click the Sign me up button. You will be redirected to a page with all the information and signup form for the development program.
We are collecting data from the market, like dimensions and for what bikes the demand of our products is greatest. Every time we receive data for a specific bike, and the data is validated, we can offer this on our website in the form of a spacer kit.
When we know what parts are selling best, we can buy them in larger quantities, maken our products cheaper.
Let's Connect
Questions about our precision parts or a unique custom project? Fill in the form below and we will get back to you shortly to get your project moving.
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