Sheet metal supplier should have the tubing, or you can order it online.
Chromoly 1 and 1/4th inch inner diameter with 1 and 3/8th inch outer diameter, not sure what length tho
For standard to HIc?
Wait, can I use a piece from oversized epic rewinds?
Wait, can I use a piece from oversized epic rewinds?
Wait, can I use a piece from oversized epic rewinds?
I'm on this website. I see 1 3/8 OD tubing (1.375 in) but none are 1.250 (1 1/4) ID
Closest thing
http://www.onlinemetals.com/merchant.cfm?pid=15340&step=4&showunits=inches&id=250&top_cat=0