MTB in dusty and sometimes muddy conditions, I get ~1,000 miles if I'm lucky, usually less. With the road bike on segregated bike paths primarily, and low/moderate power, typically 3,000 miles. Though mixing gravel in consistently will reduce the number of miles a lot. But when it's a BIG POWER season, more like 2,000 miles per chain. A big power, long distance, low gravel year on the road bike (7-8,500 miles) went through 4 chains and 4 rear tires. Chain and rear tire mileage seemed to sync up that year.
Last edited by Riveting; 10-28-20 at 09:05 AM.