1996 Honda ST1100 1.1L Petrol · P101 BJO

A 30-year-old ST1100 with a relatively short MOT record since 2019 presents a mechanical profile defined less by outright failure and more by a pattern of repeat advisories clustering around steering and brake components, culminating in a fail on the same day as its most recent pass on 3 November 2025. The 2025 test initially recorded dangerous defects for both handlebar grips being insecure, which under MOT rules immediately categorises the machine as unroadworthy; once rectified, the same date produced a pass with advisories on the central front tyre close to legal limit, nearside rear brake disc wear and nearside rear brake pad(s) close to minimum. Two earlier tests, in September 2022 and September 2023, both flagged the steering headbearing as slightly stiff or notchy with the wheel raised, indicating a persistent steering concern that did not progress to failure but has been documented across multiple inspections. The only other failure in the recorded history is a minor 2021 presentation item for a missing rear reflector, easily corrected. Taken together, the trend suggests a generally roadworthy machine whose steering and braking wear items are the recurring themes any buyer should weigh. Against a 30-year vehicle age, the recorded 57,847 miles equates to roughly 1,928 miles annually, a notably low annual accumulation that points to long periods of light or stationary use interspersed with shorter active spells. The MOT history supports this interpretation, with testing gaps between July 2019 and June 2021, and again between June 2021 and July 2022, consistent with an off-road registration status during intervening periods rather than continuous year-round riding. Such a usage pattern reduces wear on high-mileage consumables like chain and sprockets, clutch plates and major engine internals, but it elevates the risk of standing-related degradation in fuel systems, brake calipers seizing, electrical connectors corroding, seals drying out and tyres developing flat spots or sidewall cracking from age rather than tread wear. For a prospective buyer, the steering headbearing advisories recorded in 2022 and 2023 warrant particular attention on a test ride, as notchy or stiff steering can mask worn taper bearings or insufficient grease within the headstock; the machine should be lifted off the side stand with the front wheel clear and the handlebars moved lock-to-lock feeling for any binding, notchiness or roughness through the centre. A road test should include firm braking to confirm the nearside rear caliper is not binding, that the pedal feel is firm without sponginess, and that the rear disc shows no lip severe enough to cause judder, given the advisory noting disc wear. The front tyre should be inspected for age-related cracking in the sidewalls as well as remaining tread depth, since the recorded advisory placed it close to the legal 1mm limit and tyres on a low-mileage machine of this vintage can deteriorate chemically long before they wear out. Mechanically, the low annual mileage and the ST1100's well-known bulletproof V-four engine mean major powertrain concerns are unlikely, but the standing periods implied by the test gaps should prompt checks for perished rubber hoses, dried brake seals, stale fuel and any signs of oil migration around the cylinder heads and cam covers. Handlebar grip security, having been a dangerous failure item, should be confirmed by physically twisting both grips with the bike stationary to ensure they are bonded firmly to the bar, and the headstock should be inspected for any play by rocking the front end with the wheel on the ground. With advisories on steering bearings, rear brake pads and rear brake disc all documented within the past two tests, budgeting for replacement of the rear brake consumables and a regrease or replacement of the steering head bearings would be a prudent precaution before committing to purchase.