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  • 28 inches: 635 *and* 622 - Bike Forums
    Classic Vintage - 28 inches: 635 *and* 622 - I've got a (rod brake, single speed) roadster bike with 28 inch wheels I wanted to put a 3 speed coaster hub on it, so yesterday I bought a replacement rear wheel
  • Rim size to fit a 37-622 (700c) tire - Bike Forums
    IME, i have found that tires are made to fit a specific Bead Seat Diameter (BSD), usually measured in millimeters common BSD's are 559mm (aka MTB), 571mm (aka Road 26" or 650c), 622mm (road bike tire, 29er, 700c) and 630mm (old school 27") the internal or external width of the rim is only of concern as regards ride quality and in extreme cases safety as in a tire that is 2 inches wide when
  • wheel size - Bike Forums
    This is the ISO ETRTO designation- it means the tire is roughly 45mm wide when inflated and fits a rim that has a 622mm bead seat diameter Inflated tire width can vary depending on the width of the rim it's mounted on
  • Gear inches - Bike Forums
    Gear inches = 35 11 X 24 = 76" So, with a 48 tooth chainring: cog required = chainring gear inches X wheel diameter = 48 76 X 24 = 15 teeth If you keep the same low, you will be losing high end unless your current small cog is a 15 or bigger (Unlikely )
  • Dumb question: Is a 28 wheel the same as a 700c wheel? - Bike Forums
    The 40mm c-width mapped a 700mm outside diameter with a 622mm bead diameter Eventually 700c came to dominate and all 622 bead diameters came to be referred to as 700c independent of width The road tires are generally narrower so it results in a smaller diameter for 700c than 27 inch, even though 700mm is larger than 27 inches
  • Bike Forums - Center-pull vs. Sidepull brake fender clearance
    What matters for placing the brake pads, and fitting tires, is the rim's bead seat diameter For 27" rim it is 630mm and for 700c it is 622mm To switch from 27" wheels to 700c on the same back the brake pads have to come down half the difference in diameter or 4mm Which can be done on some bikes, especially if the bike designer planned it
  • Does a 700c (622mm) tire fit on a 630mm rim? - Bike Forums
    Bicycle Mechanics - Does a 700c (622mm) tire fit on a 630mm rim? - Hello everyone I recently purchased an older (probably 70's or early 80's) road bike with a CILO frame and a Shimano 600 system
  • Difference Between 700c 29ER Wheelsets - Bike Forums
    Bicycle Mechanics - Difference Between 700c 29ER Wheelsets - I ordered a carbon fork with a 15mm TA - disc brake As was mentioned here in an earlier post there are a lot of wheelsets that have a 15mm TA front wheel I plan to run between a 38-42mm tire on this bike, so I was planning between a 19mm-22mm internal
  • Bike Forums - 1950 Sun Wasp Update
    All times are GMT -6 The time now is 03:47 PM
  • 8 mm shoulder on presta valve, interface with presta or shrader rim
    Bicycle Mechanics - 8 mm shoulder on presta valve, interface with presta or shrader rim - In all the threads I found about using a 6mm presta valve in a schrader rim, no one mentioned that the presta valve has an 8mm brass shoulder at the base That's the same diameter as the rubberized valve stem on a Schrader valve





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