Tires/Tubes

- ISO Diameter: 622 / road / 29" - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Length: Schrader - Valve Shaft: Smooth - Weight: 110g (23-25mm), 128g (28-32mm), 144g (35-43mm), 160g (40-45mm)

- ISO Diameter: 584 / 650b / 27.5" - ISO Width: 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm - Labeled Size: 27.5 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Schrader - Valve Shaft: Schrader

- ISO Diameter: 622 / Road / 29" - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Shaft Type: Threaded - Valve Core: Removable

- Size: 700c x 23 – 25 - ISO Diameter: 622 / road / 29" - ISO Width: 23mm, 24mm, 25mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 92g (32mm), 94g (48mm), 96g (60mm), 98g (80mm)

- Low Lead Valve - 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 406 / 20" BMX - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 450g (1.5 – 1.75), 475g (1.75 – 2.125)

- Low Lead Valve - 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 507 / 24" BMX - ISO Width: 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm - Labeled Size: 24 x 1.9-2.125 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 600g

- 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 559 / 26" mtn , 584 / 650b / 27.5" - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Length: Schrader - Valve Shaft: Smooth - Weight: 452g (1.5-1.75), 642g (1.9-2.125)

- Size: 27.5 x 2.0 – 2.25 - 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 584 / 650b / 27.5" - ISO Width: 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm - Tube Compound: Butyl - Valve: Long Schrader - Valve Core: Removable

- Size: 29 x 2.1 – 2.3 - 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 622 / road / 29" , 630 / 27" - ISO Width: 54mm, 55mm, 56mm, 57mm, 58mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 681g

- Size: 29 x 1.9 – 2.3 - 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 622 / road / 29" , 630 / 27" - ISO Width: 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 673g

- 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 622 / road / 29" - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 368g (28-32), 438g (35-43)

- 2.25mm wall thickness - ISO Diameter: 559 / 26" mtn - ISO Width: 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm - Size: 26 x 2.4-2.75 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 694g

- Labeled Size: 26 x 3.5 – 4 - ISO Width: 88mm – 100mm - ISO Diameter: 559 / 26" MTN - Shaft Type: Threaded - Valve: Standard Schrader - Valve Core: Removable - Wall Thickess: 1 - Tube Compound: Butyl - Weight: 500

- Labeled Size: 26 x 4.0 – 4.8 - ISO Width: 100mm – 120mm - ISO Diameter: 559 / 26" MTN - Valve: Standard Schrader - Wall Thickness: 1mm - Valve length: 32mm - Weight: 580g

- Labeled Size: 26 x 4.0 – 4.8 - ISO Width: 100mm – 120mm - ISO Diameter: 559 / 26" MTN - Wall Thickness: 1mm - Valve length: 32mm - Shaft Type: Threaded - Valve Core: Removable - Weight: 580g

Surly's Knard is a 27.5-inch x 41mm tire with the perfect tread for maximum traction and low rolling resistance. Designed for wherever your path leads, the Knard is the tire you want beneath you as you plot your next adventure.

- Butyl rubber - Removable valve core - Schrader valve - Wall thickness: 0.9mm

- Butyl rubber - Economy tube - Wall thickness: 0.9mm - Removable valve core

- Valve: Presta - Butyl rubber - Wall thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Valve stem: Smooth - Butyl rubber - Wall thickness: 0.9mm

- Valve type: Presta - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve: Presta - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve Type: Schrader - Valve Length: 32mm - Valve Core: Removable - Butyl rubber - Wall Thickness: 0.9mm

- Valve Type: Schrader - Valve Core: Removable - Butyl rubber - Wall Thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm - Wheelchair-compatible

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve Type: Schrader - Valve Core: Removable - Butyl rubber - Wall Thickness: 0.9mm