Part #
IRC005
POA

"NEW" - 650B x 42 | IRC Boken Plus TLR Multi-Surface Gravel Tyre | 42-584 | 60 TPI | 40-50 PSI | Tubeless Ready | Black

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IRC Boken Plus TLR Multi-Surface Gravel Tyre - 650B x 42

The IRC Boken Plus TLR is a tubeless-ready multi-surface gravel tyre designed for riders who want a comfortable, capable, and versatile option for mixed road and gravel riding. In the 650B x 42 size, it offers a high-volume setup that provides extra comfort and grip compared with narrower tyres while maintaining a responsive ride feel.

IRC describe the Boken Plus 650 as a multi-surface tyre with a four-part tread design for smooth riding performance across varied road surfaces. It is well suited to tarmac, hardpack, rough roads, light gravel, wet road conditions, and mixed-surface adventure riding where comfort, speed, and grip all matter.

The tread design uses a smooth centre section to help maintain speed on tarmac and firmer surfaces. An inverted micro-diamond pattern is designed to assist with wet traction, while hollow-centre tread blocks allow the tyre to flex and grip when the surface becomes rougher or less predictable.

The 650B x 42 size gives riders a comfortable and capable option for gravel and adventure bikes with compatible clearance. Tubeless-ready construction allows the tyre to be run with a tube or set up tubeless on compatible rims. Running tubeless can allow lower pressures, helping improve grip, comfort, and rolling performance over rough surfaces when used with suitable tubeless sealant and compatible wheels.

Features

  • Tubeless-ready 650B multi-surface gravel tyre
  • Designed for tarmac, hardpack, rough roads, light gravel, wet road conditions, and mixed-surface riding
  • 650B x 42 size provides added comfort, grip, and control
  • Four-part tread design for smooth performance across varied road surfaces
  • Smooth centre tread helps maintain speed on tarmac and firmer surfaces
  • Inverted micro-diamond pattern designed to assist wet traction
  • Hollow-centre tread blocks allow flex and grip over rougher surfaces
  • Ultra-gummy compound for extra bite when conditions become less predictable
  • Tubeless-ready construction for compatible tubeless rim setups
  • Can be run with a tube or tubeless when fitted to compatible wheels
  • Black finish
  • Aramid folding bead

Specifications

  • Brand: IRC
  • Model: Boken Plus TLR
  • Product Type: Multi-Surface Gravel Tyre
  • Wheel Size: 650B / 27.5
  • Tyre Size: 650B x 42
  • ETRTO / ISO Size: 42-584
  • Construction: Tubeless Ready
  • Casing: 60 TPI
  • Bead: Aramid folding bead
  • Recommended Inflation: 40-50 PSI
  • Claimed Weight: 550g
  • Colour: Black
  • IRC Product Number: 186273
  • Barcode: 4571244747625

A versatile 650B x 42 tubeless-ready tyre for riders wanting a comfortable black multi-surface option for tarmac, hardpack, rough roads, light gravel, wet road conditions, and mixed-surface adventure riding.

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