BIKERELIABILITY Reg check
League table/ LAMBRETTA/GP125
Model report · 2005–2025

LAMBRETTA GP125

123cc Petrol Class 1
#1985 of 5428 overall #41 of 49 LAMBRETTAs #87 of 412 scooter bikes
86.7%
first-time pass rate
7.8%
failed outright
1,989
median miles at test
11.7k
MOT tests, 2005–2025
+2.7pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

first-time pass rate by test year · 2005–2025

The GP125's first-time pass rate has risen 2.3 points since 2005, 88.2% to 90.5%.

81%88%95%2005: 88.2% pass (110 tests)2006: 86.5% pass (607 tests)2007: 84.1% pass (685 tests)2008: 85.9% pass (760 tests)2009: 84.2% pass (799 tests)2010: 83.3% pass (796 tests)2011: 83.4% pass (851 tests)2012: 86.3% pass (857 tests)2013: 86.5% pass (904 tests)2014: 87.2% pass (891 tests)2015: 88.2% pass (876 tests)2016: 89.7% pass (857 tests)2017: 89.1% pass (835 tests)2018: 87.8% pass (477 tests)2019: 87.7% pass (316 tests)2020: 90.7% pass (225 tests)2021: 88.3% pass (248 tests)2022: 88.5% pass (208 tests)2023: 89.4% pass (170 tests)2024: 92.4% pass (119 tests)2025: 90.5% pass (116 tests)20052025

Pass rate by mileage

how the GP125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GP125 passes first time 86.6% of the time; by 50k that's 97.8%.

83%91%100%0k: 86.6% pass (9,367 tests)10k: 86.5% pass (927 tests)20k: 85.1% pass (518 tests)30k: 91.6% pass (297 tests)40k: 86.2% pass (145 tests)50k: 97.8% pass (90 tests)0k30k50k

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 GP125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
767 37.3 1.0×
brakes
532 25.9 0.7×
steering and suspension
303 14.7 0.7×
tyres and wheels
134 6.5 0.5×
reg plates and vin
81 3.9 1.0×
lamps and reflectors
79 3.8 0.2×
fuel and exhaust
58 2.8 0.6×
body and structure
43 2.1 0.7×
driving controls
37 1.8 1.3×
tyres
21 1 0.2×

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 GP125 beats 4 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

PIAGGIO VESPA 80.7% pass · 287k tests Compare head-to-head →
HONDA PCX 125 81.1% pass · 88.6k tests Compare head-to-head →
HONDA Vision 110 78.1% pass · 50.9k tests Compare head-to-head →
YAMAHA NMAX 125 82.2% pass · 33.8k tests Compare head-to-head →

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 GP125.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the GP125

More LAMBRETTA models

other LAMBRETTA bikes ranked by MOT pass rate
LAMBRETTA LI125 87.4% pass · 21.3k tests
LAMBRETTA GP200 87.8% pass · 19.9k tests
LAMBRETTA LI150 88.8% pass · 19.3k tests
LAMBRETTA GP150 87.6% pass · 12.1k tests
LAMBRETTA LI 87.7% pass · 8,752 tests
LAMBRETTA SX200 88.8% pass · 6,794 tests

See all LAMBRETTA models →

Pass rate by registration year

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

Best year to buy used: 1994 (96.1% pass). Weakest: 1989 (76.6%).

73%86%100%1960: 89.3% pass (103 tests)1961: 85.2% pass (115 tests)1962: 88.4% pass (129 tests)1963: 84.8% pass (211 tests)1964: 89.6% pass (289 tests)1965: 90.6% pass (213 tests)1966: 89.1% pass (266 tests)1967: 83.2% pass (143 tests)1968: 91.8% pass (98 tests)1969: 88.3% pass (1,434 tests)1970: 87.1% pass (1,352 tests)1971: 90.0% pass (1,196 tests)1972: 91.3% pass (92 tests)1975: 89.6% pass (115 tests)1976: 83.4% pass (157 tests)1977: 87.3% pass (181 tests)1978: 82.7% pass (452 tests)1979: 84.6% pass (571 tests)1980: 84.2% pass (749 tests)1981: 86.1% pass (648 tests)1982: 88.1% pass (303 tests)1983: 82.2% pass (276 tests)1984: 84.8% pass (323 tests)1985: 84.1% pass (640 tests)1986: 83.7% pass (300 tests)1987: 90.8% pass (65 tests)1988: 89.4% pass (94 tests)1989: 76.6% pass (64 tests)1990: 91.8% pass (61 tests)1991: 82.4% pass (74 tests)1992: 86.0% pass (114 tests)1994: 96.1% pass (51 tests)1997: 88.0% pass (50 tests)2003: 88.2% pass (51 tests)2006: 86.2% pass (65 tests)2007: 84.4% pass (64 tests)2009: 84.3% pass (51 tests)2010: 89.8% pass (59 tests)196019812010

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.

LAMBRETTA GP125 FAQ

answers computed from the data above · terms in the glossary

Is the LAMBRETTA GP125 reliable?

The LAMBRETTA GP125 is more reliable than average for its class: 86.7% of its 11,707 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #1985 of 5428 models.

What does a GP125 fail its MOT on most?

lighting and signalling — 37% of all defects recorded against failed GP125 tests.

What is the best year of GP125 to buy used?

By first-time pass rate, 1994-registered examples do best (96.1%) and 1989 worst (76.6%). Condition and history still trump the year.

How many miles will a GP125 last?

The median GP125 shows 1,989 miles at test, and examples around 50k miles still pass 97.8% of the time — mileage alone rarely kills one.

Embed this bike

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