Handlebar End Caps--[edit] I got it sorted

[withiniswithout]

I got these from Amazon. Not perfect but very good:

22mm (7/8") Contrappesi per manubrio, Set Moto Manubrio Blocco Manopole Tappo Alluminio universali Tappi Manubrio Mtb Bici,Verde (Nuovo )

BXMOTO (Spedito da Amazon)

 

[6zfshdb]

I'm not sure if this will work for you but I used these industrial grade expandable condenser tube plugs on the bars of one of my bikes:


Here's a link to the manufacturer:

Condenser Tube Plugs | Low Pressure Tube Plugs | Easy to Install

Save time and money on your next tube plugging project, 75% faster installation than other condenser tube plugs. Contact us now for FREE SAMPLES!

www.torq-n-seal.com

They're expensive and way overkill for a bar end but I like the industrial look. I had a few left over from another project and found the 1" size worked well. I got them on eBay but the seller isn't listing now.

Another possible source:

Torq N' Seal® Elastomer Condenser Plugs

High Pressure Heat Exchanger Tube Plugs rated to 250 PSIg and temperature of 350 Deg F. 5 Plug sizes cover ID Range 0.580″ to 1.150″. Buna-N Seal

justram.com