Due to the reduced air volume within the tyre you use a smaller tube which saves on a bit of weight

A variable width design helps with chain retention with clutch derailleurs and they are compatible with most chainguides

The aluminium one-piece 42/50 tooth cluster is easily replaceable so riders can keep their steel cluster for multiple seasons and freshen up the granny as needed without buying a whole new cassette

you wouldn't really want to come off the bike with these

648 710845808265 Lyrik/Pike 29+ Solo Air - 2017 - 200 hour/1 year 00

TLD A1 MIPS Helmet - S - Classic Black Out of Stock Due to the reduced airTroy Lee Designs has become synonymous with high end, premium helmets. Their full face models have been sought after for years and can be seen on podiums all over the world. The A1 continues this legacy, quickly becoming one of the most popular all mountain helmets on the market and it's easy to see why. An independent testing facility (Virginia Tech) even rated the A1 MIPS among the top 5 out of over 100 helmets they tested in 2019. Who's this item