FC-R8000 Ultegra 11 speed outer chainring, 53T-MW Road Disc Bike Flashing (10 lumens)：70 hrs

Flashing (10 lumens)：70 hrs

Reflective rear decals to enhance visibility in low-light conditions

Lithium-ion rechargeable battery

the PakYak E+ e-bike is the bike that thinks it’s a car

The new yarn also incorporates silver on the foot

FC-R8000 Ultegra 11 speed outer chainring, 53T-MW Road Disc Bike Flashing (10 lumens)：70 hrsThe Shimano Ultegra FC R8000 11 speed chainrings are the perfect replacement for worn or damaged chainrings HOLLOWGLIDE, hollow outer chainring technology, giving vast improvements in rigidity and increased weight savings, whilst also removing outer chainring flex, hugely improving shift performance making it precise even under high load The teeth have been developed to work only in conjunction with 11 speed HG chains for improved contact providing