Workshop
Lipbab is a small educational project focused on practical wheel truing. It is operated by Zeus Beton B.V., registered in the Netherlands, and serves adult learners in the Netherlands.
How the project started
Home mechanics often true a wheel by chasing the high spot with successive nipple turns until the rim looks better — and the tension is a mess. The next ride brings the hop back. The frustration is not a lack of care; it is the absence of a clear observation-and-correction order that treats tension as part of the true.
Lipbab grew from that pattern. Contributors who had taught basic workshop skills and maintained wheels for years kept seeing the same sequence of over-correction. The response was to isolate reading deviation, mapping tension, and correcting one hop at a time into practice units that can be worked on paper and then on a stand.
Principles
- Observe before adjust — name the hop before turning a nipple
- Tension is part of true — uneven tension undoes rim position
- Small increments — quarter turns and re-checks over large swings
- Honest rim limits — not every hop can be tensioned away
- Educational scope only — practice, not paid repair
The team
Materials are developed by a small group with experience in bicycle workshop practice and adult technical teaching.
Rob van Dijk
Unit design
Rob shapes the overall sequence of bench units. He has run small workshop sessions in Overijssel and insists every correction exercise starts with a written observation sheet.
Marloes Hendriks
Tension mapping
Marloes develops the tension and stress-relief materials. She focuses on relative feel and simple meter use so learners leave a wheel more even than they found it.
Bert Jansen
Deviation reading
Bert works on the observation and marking exercises. His background is long-term bike maintenance; the emphasis is on clear description before any tool is used.
Lotte Meijer
Correction scenarios
Lotte designs the side-hop and radial-hop practice sequences. She builds scenarios where the next correct turn is not the most obvious one.
Organisation details
Legal entity: Zeus Beton B.V.
Registered address: Energieweg 17, 7772 TV Hardenberg, Netherlands
Country of registration: the Netherlands
Service area: adult learners in the Netherlands (online materials)
For correspondence, use the details on the Contact page.