Indian Motorcycle Scout Bobber Sixty vs Triumph Thunderbird

The Indian Motorcycle Scout Bobber Sixty passes its MOT first time more often than the Triumph Thunderbird: 90.2% vs 87.8%, a 2.4-point lead.

MOT reliability, side by side

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

Metric	Indian Motorcycle Scout Bobber Sixty	Triumph Thunderbird
First-time pass rate	90.2%	87.8%
Outright fail rate	4.5%	6.2%
Vs comparable bikes (age & mileage adjusted)	+0.6 pts	+2.1 pts
Engine size	1,000cc	885cc
Median miles at test	4,254	13,106
MOT tests analysed	112	56,312
Most common failure	lamps and reflectors	brakes

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.

INDIAN MOTORCYCLE SCOUT BOBBER SIXTY 90.2% pass · 112 tests TRIUMPH THUNDERBIRD 87.8% pass · 56.3k tests

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