Sonil Ventilfabrik was started as a result of 17 years of rich experience of Proprietor as small scale Industry to manufacture Bicycle Tube Valves in 2000. Gradually it has now grown and manufactures various types of Bicycle as well as Automotive Tyre – Tube Valves and Accessories. By constantly studying the Industry's demand, in 2003 We added OTR Tube / Tubeless Tyre Valves and Accessories like TRJ 1175C, TRJ 650 - 02, TRSP2, TRJ 670 - 03, Large Bore Core Housing, Key type Large Bore Valve Cap, Hex type Large Bore Valve Cap etc in to our product range.