Its called the Horseshoe and is availabe on Etsy. I have 5 people from our club using them, as well as about 10 people in the states. So far so good. They most (there are a few exceptions) IS mount fork systems, and all calipers that i've come across. Designed for 160mm rotors. http://www.etsy.com/listing/84344686/the-horseshoe-bicycle-disc-brake-rotor?ref=sr_gallery_1&ga_search_submit=&ga_search_query=horseshoe+polo&ga_order=most_relevant&ga_ship_to=US&ga_view_type=gallery&ga_search_type=handmade&ga_facet=handmade
@HorseLancaster started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Its called the Horseshoe and is availabe on Etsy.
I have 5 people from our club using them, as well as about 10 people in the states.
So far so good.
They most (there are a few exceptions) IS mount fork systems, and all calipers that i've come across.
Designed for 160mm rotors.
http://www.etsy.com/listing/84344686/the-horseshoe-bicycle-disc-brake-rotor?ref=sr_gallery_1&ga_search_submit=&ga_search_query=horseshoe+polo&ga_order=most_relevant&ga_ship_to=US&ga_view_type=gallery&ga_search_type=handmade&ga_facet=handmade