ABUS Urban-I 4.0 Ace Helmet - Polar White Size:S Bottom bracket shell width: 68

Bottom bracket shell width: 68 mm

Compatible with wide spec 47mm chainline cranks onlyBraze on and band clamp versionsBand type works with 34

An 8 liter removable waterproof drybag keeps contents completely protected from wet weather and splashes while a built-in air release button purges unwanted air from the bag to effectively compress its contents

LOW-LATENCY SPEED CONCEPT

while providing solid actuation

ABUS Urban-I 4.0 Ace Helmet - Polar White Size:S Bottom bracket shell width: 68Whether you commute to work every day, meet up with friends for a relaxed coffee ride or want to be safe and stylish at all times the Urban I 4. 0 is the helmet for you. The Rear Light is now magnetic and rechargeable. As an elegant light strip at the rear of the helmet, it offers 180 degree visibility especially in the dark, at dusk or in bad weather. In the ACE version, you can select Power and Pulse in addition to the Steady and Flash light modes.