Head to head
Crypton Class VII Roller Brake Tester vs Sealey WB10
The Crypton Class VII Roller Brake Tester is a mot-approved roller brake tester for heavier vehicles. The Sealey WB10 is a semi-automatic wheel balancer.
Last reviewed 13 September 2026
Specifications side by side
| Crypton Class VII Roller Brake Tester | Sealey WB10 | |
|---|---|---|
| Supply | 400V 3-phase, 25A fuse | 230V single phase |
| Max axle weight | 4000 kg | - |
| Max brake force per wheel | 1250 kgf | - |
| Test speed | 2.62 km/h | - |
| Roller diameter | 200 mm | - |
| Roller length | 1000 mm | - |
| Axle width range | 800-2200 mm | - |
| Max control box distance | 12 m from rollers | - |
| Warranty | 3 years | - |
| Max wheel weight | - | 70 kg |
| Max rim diameter | - | 28in |
| Max rim width | - | 20in (510 mm) |
| Motor power | - | 90 W |
| Balance accuracy | - | +/- 1g |
| Rotating speed | - | 140 rpm |
| Dimensions | - | 1100 x 1000 x 1250 mm |
| Weight | - | 128 kg |
Sources: Crypton Class VII Roller Brake Tester, Sealey WB10. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Class VII Roller Brake Tester if...
A Class VII MOT roller brake tester with a higher 1250 kgf brake force per wheel and longer 1000mm rollers than the Class IV unit, for heavier vehicles at MOT. It tests at a slower 2.62 km/h and shares the same 3-phase supply and 3 year warranty. Suits a garage testing larger vans and light commercials alongside cars.
Full Class VII Roller Brake Tester specifications →Buy or hire the WB10 if...
A semi-automatic wheel balancer with auto data input for offset and wheel diameter, taking rims up to 28 inches. Balancing takes about 7 seconds per wheel at 140rpm. Suits a garage wanting a simple balancer alongside a tyre changer rather than a fully automatic setup.
Full WB10 specifications →Common questions
What is the difference between the Crypton Class VII Roller Brake Tester and the Sealey WB10?
The Crypton Class VII Roller Brake Tester is a mOT-approved roller brake tester for heavier vehicles; the Sealey WB10 is a semi-automatic wheel balancer.
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