BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ CPI/OLIVER
Model report · 2005–2025

CPI OLIVER

49cc Petrol Class 1
#5205 of 5426 overall #9 of 14 CPIs #376 of 455 moped bikes
60.2%
first-time pass rate
29.3%
failed outright
6,058
median miles at test
1,135
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2016

The OLIVER's first-time pass rate has fallen 3.6 points since 2008, 71.2% to 67.6%.

47%62%76%2008: 71.2% pass (52 tests)2009: 52.1% pass (165 tests)2010: 59.5% pass (220 tests)2011: 57.9% pass (178 tests)2012: 63.1% pass (149 tests)2013: 68.2% pass (110 tests)2014: 57.3% pass (75 tests)2015: 57.4% pass (47 tests)2016: 67.6% pass (37 tests)20082016

Pass rate by mileage

how the OLIVER's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage OLIVER passes first time 61.5% of the time; by 20k that's 47.2%.

44%54%64%0k: 61.5% pass (866 tests)10k: 56.9% pass (218 tests)20k: 47.2% pass (36 tests)0k10k20k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a OLIVER

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
287 29.6 3.6×
steering and suspension
215 22.1 4.3×
brakes
211 21.7 3.0×
tyres and wheels
124 12.8 3.6×
fuel and exhaust
60 6.2 5.3×
body and structure
35 3.6 5.0×
lamps and reflectors
19 2 0.6×
reg plates and vin
9 0.9 1.4×
driving controls
6 0.6 2.2×
structure and attachments
5 0.5 0.5×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the OLIVER beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the OLIVER.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2007 (64.6% pass). Weakest: 2006 (58.7%).

58%62%66%2005: 60.3% pass (229 tests)2006: 58.7% pass (549 tests)2007: 64.6% pass (291 tests)200520062007

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

CPI OLIVER FAQ

answers computed from the data above · terms in the glossary

Is the CPI OLIVER reliable?

The CPI OLIVER is less reliable than average for its class: 60.2% of its 1,135 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5205 of 5426 models.

What does a OLIVER fail its MOT on most?

lighting and signalling — 30% of all defects recorded against failed OLIVER tests.

What is the best year of OLIVER to buy used?

By first-time pass rate, 2007-registered examples do best (64.6%) and 2006 worst (58.7%). Condition and history still trump the year.

How many miles will a OLIVER last?

The median OLIVER shows 6,058 miles at test, and examples around 20k miles still pass 47.2% of the time — mileage alone rarely kills one.