The Uberbike Race Matrix Tubeless Conversion Kit - 500ml is everything you need to convert your bike to tubeless up to and including Fatbike wheels. Kit includes 1 x 500ml Race Matrix Tyre Sealant bottles, 2 x Airtech CNC Alloy Tubeless Valve Stems 40mm, 1 x 25mm x 9m Gorilla Rim Tape. Uberbike Race Matrix Tubeless Tyre Sealant is developed and manufactured in the UK. New improved Synthetic latex based formula to seal punctures, porous tyre walls and leaky rim beads. Nanotechnology allows sealant to cling to the inside of the tyre in all conditions, ensuring maximum puncture protection is maintained. Rubber and fibre particles entwine together producing a strong airtight seal which is allowed to flex and stretch. Race Matrix does not ball up due to a specific binding between the liquid polymers, rubber and fibre particles, which also results in less frequent sealant top ups. Compatible with co2 inflation systems. Non toxic - does not contain Ethylene Glycol commonly found in sealants, and is non allergenic. Contains Corrosion Inhibitors. Guideline quantity per tyre -Road/Gravel - 40/60ml, 26' - 60/80ml, 27.5" - 80/100ml, 29' - 100/120ml, DH Tyres 100/150ml. Fatbike - 200/250ml. Ensure the rim and tyre are thoroughly cleaned prior to installation. Select your valve stem colour by using the drop down menu below.