Tange 24 tpi thread bottom bracket
British and italian-threaded bottom-bracket cups are easily available; french ones less so, though still in production as of 2015. Velo-orange makes a french-threaded cartridge-bearing assembly, and a threadless one which clamps into the bottom-bracket shell. Track frames can use 65mm shell to pull the arms in a little closer to the center line of the frame to give the pedals a little more clearance on a banked track. S square-taper bottom-bracket spindles can be used with french or raleigh cups, though with raleigh cups, it may be necessary to use 6 mm or 15/64″ bearing balls. (and other raleigh brands like rudge): 1 3/8″ x 26 tpi with left handed fixed cup. When you click on a sponsored product ad, you will be taken to an amazon detail page where you can learn more about the product and purchase it.
Threaded bicycle bottom bracket
Tange 24 tpi thread bottom bracket. Generally italian road frames have 70mm wide bb shells and british and french use 68mm shells. You still have to use a 68mm spindle, however. It usually has no adjustability. Another old british spec that will turn up most often on tandems. Deals with these issues in great detail. Even some italian makers build with english bb shells now.
Product key features
There’s a problem loading this menu right now. Phil wood cartridge-bearing mounting cups are made for every type of bottom-bracket threading.