Surly Ultra New Non-Disc Bicycle HubsSurly Ultra New Front Hubs, Non Disc.

Performance Tier: High-reliability "Hellbender" series

SG9 Bearings: Paired with the Hydrogen SE wheels

Series: Factory

robust internals that make it even more durable and its shifting performance more precise

It offers up to 20 hours of max runtime and a highly disruptive Daytime Flash mode

5mm Medium/Large Profile: The of ergonomic volume

* REAR DERAILLEUR PULLEY KIT NX/SX EAGLE* SRAM Model ID: RD-SPP-A0​​

The high-volume 40mm casing allows for lower tire pressures and a smoother ride while still reducing drag and rolling resistance

The slick centerline decreases rolling resistance while its round tire profile is packed with short

The level no-compromise

/* Adjusted min-width for better fit on most phones */ } } Grid Light Set Run Times 💡 Light Type Mode Brightness (Lumens) Run Time Front Light Front Solid 110 1

55 lumens rear