- Touring / race bike with a crossbar
You need to be able to stand astride the crossbar/toptube with an inch clearance between you and the toptube.
- Mountain bike
You need 3 or 4 inches clearance between you and the toptube.
- Hybrid cycle
You need about 2 inches clearance between you and the toptube.
- Open frame
This is a bit different as there is no toptube as such!
What we ensure here, is that the rider has a comfortable position whereby they can reach the handlebars without stretching unduly
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