by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Feathering on Tyres: The Alignment Problem Behind It Quick answer: Tyre feathering is a sawtooth wear pattern where each tread rib is worn sharp on one edge and rounded on the other, so the tread feels smooth one way and abrasive the other when you slide your hand...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Cupping and Scalloping: Causes and Fixes Quick answer: Cupping (also called scalloping) is scooped, wavy wear around the tyre — high and low patches every few centimetres. It’s almost always a suspension problem: worn shocks or struts, tired bushes or ball...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Centre Wear on Tyres: What It Tells You Quick answer: Tyres worn in the centre while the shoulders still have tread almost always mean overinflation — too much pressure bows the tread so only the middle touches the road. High-powered rear-wheel-drive cars can wear the...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Why Your Tyres Are Wearing on the Outside Edge Quick answer: Outside-edge tyre wear usually means positive camber, toe-in, or enthusiastic cornering scrubbing the outer shoulder. When both outer shoulders wear together, chronic underinflation is the likely cause....
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Why Your Tyres Are Wearing on the Inside Edge Quick answer: Tyres worn on the inside edge are almost always a wheel-alignment problem — usually too much negative camber or toe-out — or worn suspension bushes, ball joints or a lowered/aftermarket setup. If both inside...
by admin | Oct 30, 2026 | Tyre Pressures
Why Your Tyre Pressure Light Comes On in Cold Weather Quick answer: Air contracts as it cools, so a cold snap or a frosty morning lowers your tyre pressure — roughly 1 psi for every 5–6°C drop. That’s often enough to trip the pressure warning light even on...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Quick answer: When aluminium alloy wheels corrode, a chalky white oxide builds up on the bead seat where the tyre seals to the rim. That breaks the airtight seal and lets the tyre leak slowly. The fix is to demount the tyre, wire-brush and sand the corrosion back to...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
Quick answer: A bead leak is air escaping where the tyre’s edge (the bead) meets the rim, not through a hole in the tread. It’s usually caused by corrosion, dirt or a kerbed rim breaking the airtight seal. The fix is to demount the tyre, clean and...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
TL;DR: A slow puncture usually comes from a tiny tread object, a leaking valve, a bead leak or a corroded rim. Find it with a soapy-water spray or a water bath, check the valve, and if nothing shows, have the tyre demounted. Most slow leaks are cheap to fix if caught...
by admin | Oct 30, 2026 | Wear, Damage and Diagnosis
TL;DR: In Australia a tyre may only be repaired in the crown, or central tread, area — roughly the middle 60–75% of the tread face. Repairs to the shoulder, sidewall or bead are not permitted. The tyre must be removed from the rim and inspected, and the hole must be...