Rs8 x type cranks run on a 24mm axle that is compatible with the shimano hollow tech 2 system.
The uno's are machined from 7075 t6 aerospace aluminium then the hardcoat anodising treatment applied for maximum strength and wear protection
Chainline is standard moutainbike of 50mm. We will be introducing some boost sizes very shortly so please enquire through Middleburn website and watch Middleburn social media pages
These are the original Uno Singlespeed Spiders (Non-Thin Thick)