The new S.I.R. 9 – a steel bike with all the advantages – tapered steered, BoiCentric II bottom bracket and more. This is being released in conjunction with a worldwide auction benefitting IMBA – Niner believes that this is the first time an entire product launch has been dedicated to supporting trails access and building!

Auction details can be viewed at: http://facebook.com/ninerbikes

Niner S.I.R. 9

Frameset MSRP $999.99

Reynolds 853 steel, 142×12 rear wheel, 44mm head tube.

Colors: Tamale Red or Arctic White

142x12mm maxle

Read more about the Niner S.I.R. 9 at http://www.ninerbikes.com/sir9