Baotian BT 49 QT-9F vs Piaggio NRG

The Baotian BT 49 QT-9F passes its MOT first time more often than the Piaggio NRG: 66.6% vs 65.5%, a 1.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Baotian BT 49 QT-9F	Piaggio NRG
First-time pass rate	66.6%	65.5%
Outright fail rate	27.0%	27.4%
Vs comparable bikes (age & mileage adjusted)	-6.3 pts	-6.0 pts
Engine size	49cc	49cc
Rank among all models	#4931 of 5428	#4992 of 5428
Median miles at test	7,412	9,874
MOT tests analysed	341	40,458
Most common failure	steering and suspension	lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Baotian BT 49 QT-9F	Piaggio NRG
2014	59.0%	67.4%
2015	63.9%	68.8%
2016	70.0%	68.0%
2017	67.5%	72.0%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Baotian BT 49 QT-9F	Piaggio NRG
0k-10k miles	68.9%	71.3%
10k-20k miles	58.2%	60.6%

Bands with fewer than 30 tests for either bike are left out.

BAOTIAN BT 49 QT-9F 66.6% pass · 341 tests PIAGGIO NRG 65.5% pass · 40.5k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.