Tannus Armour Tube 29" Plus 2.5"-3.0" Brand_YBN The 40T ring also features

The 40T ring also features an external chain guide ring to give another level of chain retention and protect your pants from engaging the chain

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The maximum permitted load is 60kg

Shackle: 12mm hardened steel shackle

Tannus Armour Tube 29" Plus 2.5"-3.0" Brand_YBN The 40T ring also featuresThe Tannus Armour Tyre Insert is the ideal solution if you are running tubes and want some bomber puncture protection as well as increased ride quality. Who's this item for: DH, Enduro, and Trail bike riders running tubes who are hard on tyres and get lots of flats! Tubes Tubeless: This system has been designed to be used with tubes. Tannus recommends these sized tubes with their inserts: 2. 0 2. 5" insert: 1. 75 2. 1 tube 2. 6 3. 0" insert: 2. 0" 2.