Guide

Clean a bike carburetor when hard starts, hesitation, or varnish appear; replace it only when the body is cracked, corroded through, or warped.

Plan a bike coolant change every 2 years or 24,000–30,000 km, guided by your manual and warning signs like overheating or brown fluid.

Most kids are ready to lose stabilisers when they can balance, steer, and brake smoothly on a well fitted bike.

No-start bike issues boil down to battery, fuel, air, spark, safety interlocks, or a mechanical fault.

Service your bike on a mileage-and-month cadence, and move sooner if safety parts squeal, feel rough, or drift out of adjustment.

Change the oil filter at every oil change, or at 6,000–10,000 km (4,000–6,000 miles) or 12 months, unless your manual specifies sooner.

Change road bike tires every 2,000–4,000 km or sooner if tread flattens, cuts spread, or punctures spike on the road bike tire.

Change a bike cassette when chain wear exceeds 0.5–0.75%, gears skip under load, or cog teeth are hooked; mileage varies by use and care.

Use half-clutch (friction zone) only for short, low-speed control—starts, crawling in traffic, slow U-turns, and steep launches—never for cruising.

Use high gear on a bike on fast flats and descents, with tailwinds, or for steady tempo when you can hold smooth cadence without strain.