Dave
YaBB Moderator ModSquad
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SuzukiSavage.com Rocks!
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Camp Springs, Kentucky
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Choosing what size tube to buy.....depends on your tire size, and what brand of tube you buy. Some tubes are listed in the metric designation, while others use the "inch" standard.
For your front tire if you are buying a 100/90-19 tire - use a 100/90-19 tube...or a 3.25 - 3.50-19. For the valve stem you want a TR-4.
For the rear tire the same tube works for the stock sized 140/80-15 and 130/90-15 tube. It is hard to find a tube in this size from the online retailers - as it is not a very common size. You can find that tube on eBay pretty easy. If you want a straight valve stem you choose a TR-4. For a 90 degree stem you want a PV-78 - but you may not be able to find that valve stem on this size tube.
If you use the larger than stock 140/90-15 rear tire, the tubes are the same 140/90-15 size. And you can find them at most online retailers as this is a common sized tire - and you can find the straight TR-4 valve stem or the 90 degree PV-78 valve stem.
And don't be surprised if you can't find a tube for the front/rear made by the same company.....you might have to mix and match from different companies.
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