Kawasaki Z1B Reliability, MOT Pass Rate & Common Faults
Free Kawasaki Z1B car check
Is the Kawasaki Z1B reliable? We analysed 648 real MOT tests across 133 vehicles to find out.
Got a specific Kawasaki Z1B? Enter the reg for a free check:
The Kawasaki Z1B is above average for reliability based on real UK MOT data. Common problems include shock absorber seal failed and leaking oil, steering headbearing has excessive free play and locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride. Here's everything you need to know before buying a used Kawasaki Z1B.
Kawasaki Z1B Number Plates
Number plates registered to a Kawasaki Z1B. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Kawasaki Z1B MOT Pass Rate by Year
How likely is a Kawasaki Z1B to pass its MOT? Here's the pass rate for each registration year, newest first.
Kawasaki Z1B Problems — What Goes Wrong?
The most common reasons a Kawasaki Z1B fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Kawasaki Z1B Mileage — What's Normal?
How many miles does a typical Kawasaki Z1B owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Kawasaki Z1B MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Kawasaki Z1B year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1975 | 385 | 91.2% | 8,318 | 29,101 | 40,007 |
How Long Does a Kawasaki Z1B Last?
Based on 133 Kawasaki Z1B vehicles on UK roads.
Kawasaki Z1B Mileage Distribution
Total mileage recorded across all Kawasaki Z1B MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Kawasaki Z1B
Based on MOT pass rates across all registration years with sufficient test data.
91.2% MOT pass rate from 385 tests
The best year to buy a used Kawasaki Z1B is 1975, which has the highest MOT pass rate at 91.2% across 385 tests.
How Does the Kawasaki Z1B Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Kawasaki Z1B THIS CAR | 92.4% | 648 | 28,067 mi | 51 yrs |
| Kawasaki ZX-6R | 81.7% | 204,826 | 19,965 mi | 31 yrs |
| Kawasaki ZX-9R | 83.7% | 103,150 | 22,736 mi | 32 yrs |
| Kawasaki ER5 | 81.2% | 65,763 | 22,023 mi | 30 yrs |
| Mazda 323 SE Executive A | 65.5% | 473 | 86,801 mi | 37 yrs |
Compared to the Kawasaki ZX-6R (81.7% pass rate) and the Kawasaki ZX-9R (83.7% pass rate), the Kawasaki Z1B outperforms both on MOT reliability.
Found a Kawasaki Z1B you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Kawasaki Z1BShould you buy a used Kawasaki Z1B?
The Kawasaki Z1B has an overall MOT pass rate of 92.4% across 648 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Kawasaki Z1B are shock absorber seal failed and leaking oil (4 recorded failures), steering headbearing has excessive free play (3), and locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride (2). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Kawasaki Z1B owner drives around 244 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Kawasaki Z1B models stay on UK roads for around 51 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.