Donnelly’s EMP Gravel Tire Grows in Size – 700c x 45 & 650b x 47 now available

donnelly emp 700c x 45 650b x 47

Earlier this year Donnelly Cycling rolled out their latest gravel tread –– the EMP –– named after Emporia, Kansas, the mother of all gravel events, the DK200. The first size to hit the market was the tubeless ready 700 x 38.

donnelly emp 700c x 45 650b x 47

Anticipated wider sizes have arrived. The EMP is now available in two news sizes: 700 x 45 and 650b x 47.

donnelly emp 700c x 45 650b x 47

The EMP provides necessary traction when things get loose yet rolls with incredible efficiency when the terrain levels out. Beefy side knobs borrowed from the equally combative BOS cyclocross tire (named for wintry Boston ‘cross conditions) offer impeccable cornering control and the integrated protection belt helps ward off punctures. The center tread design borrows slightly from Donnelly’s MSO which, to date, was considered the most aggressive in their steadfast gravel stable.

donnelly emp 700c x 45 650b x 47

The EMP 700 x 38 and 700 x 45 tubeless ready retails for $US 72 and is available in a 60 tpi foldable bead for $US 47.). The 650 x 47 tubeless retails for $US 68.50.

donnelly emp 700c x 45 650b x 47

Also, be sure to check out our comprehensive video review of the Donnelly G//C gravel bike!

Donnelly Cycling


  1. Avatar Tony

    Oh great and I just thought I had made up my mind on my set of treaded tires….how do they compare to GravelKings? Especially in the wet/mud

    • JOM JOM

      Tony, I have not ridden the EMP, sorry.

  2. Avatar Tony

    I am sorely tempted I have a set on MSO’s that while worn have performed admirably….but those Bordeaux Gravelking SK’s

    • JOM JOM

      Agreed, the Bordeaux GK SK’s are so sweet and even sweeter in person.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.