BIKERELIABILITY Reg check
League table/ Bsa Super Rocket/vs Honda Shadow
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Bsa Super Rocket vs Honda Shadow

The Bsa Super Rocket passes its MOT first time more often than the Honda Shadow: 93.6% vs 81.0%, a 12.6-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Bsa Super Rocket Honda Shadow
First-time pass rate 93.6% 81.0%
Outright fail rate 1.9% 11.2%
Engine size 650cc 700cc
Rank among all models #224 of 5428 #3379 of 5428
Median miles at test 6,389 18,246
MOT tests analysed 1,549 6,066
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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Bsa Super Rocket Honda Shadow
Lights & signalling 1.3% 4.8%
Brakes 0.3% 3.7%
Steering & suspension 0.6% 3.1%
Tyres & wheels 0.1% 3.1%
Fuel & exhaust 0.3% 0.7%
Structure & body 0.1% 0.9%
Drive system 0.1% 0.5%

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 Bsa Super Rocket Honda Shadow
2011 93.7% 79.7%
2012 91.9% 81.5%
2013 95.1% 80.4%
2014 92.0% 82.5%
2015 94.6% 79.0%
2016 96.9% 81.9%
2017 94.2% 80.8%
2018 96.7% 80.6%

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 Bsa Super Rocket Honda Shadow
0k-10k miles 93.4% 87.3%
10k-20k miles 93.4% 81.5%
20k-30k miles 90.7% 77.7%
30k-40k miles 96.1% 75.9%
40k-50k miles 93.7% 78.8%
50k-60k miles 95.6% 72.8%

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

Bsa Super Rocket vs Honda Shadow FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Bsa Super Rocket or the Honda Shadow?

The Bsa Super Rocket passes its MOT first time more often than the Honda Shadow: 93.6% vs 81.0%, a 12.6-point lead. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Bsa Super Rocket fail its MOT on most?

Lights & signalling: 1.3% of Bsa Super Rocket MOT tests failed on it, then steering & suspension (0.6%).

What does the Honda Shadow fail its MOT on most?

Lights & signalling: 4.8% of Honda Shadow MOT tests failed on it, then brakes (3.7%).

Which holds up better at high mileage, the Bsa Super Rocket or the Honda Shadow?

At 50k-60k miles the Bsa Super Rocket passes first time more often: 95.6% for the Bsa Super Rocket vs 72.8% for the Honda Shadow.

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