TGB 101R vs Peugeot Vivacity

The TGB 101R passes its MOT first time more often than the Peugeot Vivacity: 71.5% vs 70.4%, a 1.1-point lead.

MOT reliability, side by side

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

Metric	TGB 101R	Peugeot Vivacity
First-time pass rate	71.5%	70.4%
Outright fail rate	19.3%	21.7%
Vs comparable bikes (age & mileage adjusted)	-3.9 pts	-0.9 pts
Engine size	49cc	49cc
Rank among all models	#4614 of 5428	#4699 of 5428
Median miles at test	4,854	11,162
MOT tests analysed	601	29,731
Most common failure	lighting and signalling	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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	TGB 101R	Peugeot Vivacity
Lights & signalling	8.5%	11.5%
Steering & suspension	7.8%	10.5%
Brakes	9.5%	8.6%
Tyres & wheels	3.5%	4.4%
Fuel & exhaust	1.0%	1.9%
Structure & body	0.2%	1.6%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

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

Test year	TGB 101R	Peugeot Vivacity
2010	76.6%	69.9%
2011	70.2%	67.2%
2012	77.3%	66.2%
2013	63.3%	68.2%
2014	71.8%	66.3%
2015	76.8%	68.7%
2016	71.8%	67.8%
2017	71.0%	71.8%

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	TGB 101R	Peugeot Vivacity
0k-10k miles	72.8%	76.6%
10k-20k miles	61.0%	67.9%

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

TGB 101R vs Peugeot Vivacity FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the TGB 101R or the Peugeot Vivacity?

The TGB 101R passes its MOT first time more often than the Peugeot Vivacity: 71.5% vs 70.4%, a 1.1-point lead. Adjusted for age, mileage and test class, the Peugeot Vivacity still comes out ahead: -3.9 points vs comparable bikes for the TGB 101R, -0.9 for the Peugeot Vivacity. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the TGB 101R fail its MOT on most?

Brakes: 9.5% of TGB 101R MOT tests failed on it, then lights & signalling (8.5%).

What does the Peugeot Vivacity fail its MOT on most?

Lights & signalling: 11.5% of Peugeot Vivacity MOT tests failed on it, then steering & suspension (10.5%).

TGB 101R 71.5% pass · 601 tests PEUGEOT VIVACITY 70.4% pass · 29.7k tests

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