




GEARRISTA Brush
Precision brush engineered for drivetrain geometry.
- Shaped to match cassette spacing and chain articulation
- Calibrated contact pressure that removes particles without affecting metal surfaces
- Preserves the lubricant film
- Designed for repeated use across thousands of cycles
- Available in sizes matched to cassette range
Choose your brush size.
Small brush: up to 10–34 cassette
Large brush: above 10–34 cassette
No charge until your order ships
Cancel anytime before shipment. Full refund guaranteed.
Delivery in approx. 4 months
Free shipping
2-year warranty
Secure your unit in the first production batch

GEARRISTA Brush
3 years of development
Tested in real conditions
Rasmus Jensen - Road & Gravel Rider
I’ve used Gearrista after every ride for three months on both road and gravel. The drivetrain stays noticeably cleaner over time, and you can see particles being removed during the process. It changes how you approach maintenance. Instead of waiting for buildup, it becomes something you handle continuously. I spend less time on deep cleaning, and the drivetrain feels smoother and more consistent from ride to ride.
Mads Kjelberg - Mechanical Engineer
Gearrista was developed over three years through structured testing, measurement and iteration. From the start, the focus has been on understanding how the drivetrain actually behaves, rather than designing around assumptions. We developed three working prototypes, each one refining how contact, alignment and rotation interact within the system. Chains, cassettes and frames from multiple premium brands were 3D scanned to define geometry and tolerances accurately.
Mikkel Sørensen - Bicycle Mechanic
I’ve been part of the test group throughout the development, contributing feedback from a workshop perspective. I’ve seen the system tested across a wide range of real use cases with both riders and mechanics. That matters, because drivetrain behaviour varies in practice. What convinces me is that the system works with real-world use, not just ideal conditions. It feels stable, predictable and refined over time.
hours of development
focus group riders
units avialable in first series
kilometers tested
Testimonials
After testing Gearrista for more than 2 months, I can say without a doubt that it has improved my riding. I ride a mix of gravel and road and the drivetrain just feels better when using Gearrista.
— Jürgen W., Germany
Used after every ride for 4 weeks. Drivetrain stays consistently quiet. No mess. Actually makes me maintain my bike.
— Jacob M. from Copenhagen, Denmark
Didn’t expect this to matter but I can actually hear and feel the difference. I also save a lot of time compared to before.
— André S. from Amsterdam, The Netherlands
Details
Gearrista
- A simple routine that fits naturally into how you already ride.
- Your drivetrain remains smooth, efficient and consistent over time.
- Compatible with both mechanical and electronic shifting systems.
- No load on frame, derailleur or bearings.
- Gearrista is produced in limited batches to maintain precision and quality.
Included in the box
- GEARRISTA system
- Integrated brush interface
- Collection tray
- Power supply (EU)
- Quick start guide
Specs
- Dimensions: 65 × 62 x 32 cm (H × W × D)
- Weight: 6.5 kg
- Cord lenght: 3 meters
- Classified IP44 and can withstand occasional splashes of water
Have further questions?
When am I charged?
You are only charged when your Gearrista is ready to ship.
Can I cancel?
Yes — cancel anytime before shipment for a full refund. Of course, after delivery you also have the right to withdraw from your purchase within fourteen (14) days, in accordance with EU consumer protection law.
Why reserve now?
Reserving now secures your place in the first production run.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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