Dear sirs, We are a manufacture factory in Mainland China and we can supply various kind of inner tube tyres. if you are looking for tires,please let us know.our price is competitive. sincerely hope we can eastablish long and firm business relations with you on the basis of mutual benefit. Such as:3.00-10,3.00-12,3.50-10,2.25-14,2.25-16,2.25-17,2.50-18,2.50-18,2.50-10,2.75-14,2.75-16,2.75-17,2.75-18,2.75-21,2.75-10,3.00-14,3.00-16,3.00-17,3.00-18,3.25-16,3.25-18,3.50-16,3.50-17,3.50-18,3.75-19,90/90-18,90/90-10,100/90-10,110/90-16,110/90-10,130/90-15,140/70-17,3.50-10,4.00-8,4.10-18;3.00-4,3.50-4,3.50-8,4.00-6,4.00-8,2.50-4,2.50-6,4.00-4,3.50-6,3.00/3.25-8,5.00-6,3.50-5,2.00-24,12.00-20,11.00-20,10.00-20,9.00-20,8.25-16,8.25-20,7.50-16,7.50-15,7.00-20,7.50-20,7.00-16,7.00-15,6.50-16,6.00-16,5.60-13,5.00-12,6.00-12,5.00-10,5.50-12,5.50-13..... Also including natural and butyl inner tube. we await your early reply and make a further discussion. Best regards