BIKERELIABILITY Reg check
League table/ BSA/GOLDEN FLASH
Model report · 2005–2025

BSA GOLDEN FLASH

650cc Petrol Class 2
#415 of 5428 overall #18 of 62 BSAs #257 of 2788 other bikes
92.3%
first-time pass rate
3.6%
failed outright
12,964
median miles at test
714
MOT tests, 2005–2025

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.

Pass rate over time

first-time pass rate by test year · 2006–2012

The GOLDEN FLASH's first-time pass rate has fallen 4.3 points since 2006, 96.8% to 92.5%.

86%92%99%2006: 96.8% pass (93 tests)2007: 92.3% pass (91 tests)2008: 89.8% pass (88 tests)2009: 89.4% pass (85 tests)2010: 88.1% pass (84 tests)2011: 92.0% pass (75 tests)2012: 92.5% pass (67 tests)20062012

Pass rate by mileage

how the GOLDEN FLASH's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GOLDEN FLASH passes first time 92.8% of the time; by 50k that's 92.9%.

86%91%95%0k: 92.8% pass (321 tests)10k: 87.7% pass (57 tests)20k: 88.0% pass (50 tests)30k: 93.4% pass (61 tests)40k: 94.0% pass (84 tests)50k: 92.9% pass (42 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 GOLDEN FLASH

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
38 59.4 0.6×
steering and suspension
11 17.2 0.5×
brakes
8 12.5 0.2×
body and structure
4 6.2 0.9×
tyres and wheels
2 3.1 0.1×
drive system
1 1.6 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 GOLDEN FLASH beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

KAWASAKI ZX-6R 78.1% pass · 174k tests Compare head-to-head →
SUZUKI GSF600 77.3% pass · 143k tests Compare head-to-head →
YAMAHA FZS600 82.6% pass · 137k tests Compare head-to-head →
HONDA VFR800 FI 86.7% pass · 89.4k 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 GOLDEN FLASH.

Compare with any bike

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

More BSA models

other BSA bikes ranked by MOT pass rate
BSA A10 91.6% pass · 10.2k tests
BSA BANTAM 88.7% pass · 7,202 tests
BSA C15 89.2% pass · 5,895 tests
BSA A65 90.9% pass · 5,064 tests
BSA B31 92.0% pass · 3,429 tests
BSA B40 90.6% pass · 3,360 tests

See all BSA models →

Pass rate by registration year

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

Best year to buy used: 1960 (98.1% pass). Weakest: 1959 (91.7%).

90%95%99%1954: 92.4% pass (118 tests)1959: 91.7% pass (60 tests)1960: 98.1% pass (53 tests)1961: 94.9% pass (118 tests)195419601961

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.

BSA GOLDEN FLASH FAQ

answers computed from the data above · terms in the glossary

Is the BSA GOLDEN FLASH reliable?

The BSA GOLDEN FLASH is more reliable than average for its class: 92.3% of its 714 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #415 of 5428 models.

What does a GOLDEN FLASH fail its MOT on most?

lighting and signalling — 59% of all defects recorded against failed GOLDEN FLASH tests.

What is the best year of GOLDEN FLASH to buy used?

By first-time pass rate, 1960-registered examples do best (98.1%) and 1959 worst (91.7%). Condition and history still trump the year.

How many miles will a GOLDEN FLASH last?

The median GOLDEN FLASH shows 12,964 miles at test, and examples around 50k miles still pass 92.9% of the time — mileage alone rarely kills one.

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