Seamless 50.08mm O.D. tube x 9.53mm wall tube 143mm long

Not a thin wall cheaper offering found on ebay, increasing the risk of structural failure, which may cause splitting of the wall, due to the pressed in cups extra pressure from some over sized cups, after the chrome plating process.

Machined outside diameter...to maintain concentric to the inside turning for the bearing cups.... at both ends.     

   As no cold drawn tube is going to be accurately round or straight

  These are machined for a press fit to match the cups we buy in...

Be aware that some suppliers cups may not fit correctly... it's your responsibility to determine  / adjust the interference fit before pressing into any headstock.

Cups will NOT be supplied pressed in .... as photo ...to enable welding to be done, prior to fitting of your forks

When completed with cups, bearings and chrome dust covers = 185mm approximately in length.

Photo directly below shows Harley Type Headstock Frame to fork adapters.... when fitted.