Adventure Bike Rider Forum

The metal CPC LCD17004/5/6 (1/4",5/16" & 3/8") and their other halves LCD22004/5/6 are rated to 17.3BAR/250psi.
The plastic versions PLCD17004/5/6 & PLCD22004/5/6 are rated to 8.3BAR/120psi.
The plastic ones were originally fitted to BMW's but they had a habit of snapping at the pipe junction side.
I'd go with the metal versions.
Get the V suffix versions for Viton O rings.

If you want one to go onto 8mm fuel lines look for a tdm900 fuel line, after stripping the hose off the connectors you get two angled and one straight female connectors plus one male connector. All high pressure quick release. If you have access to a lathe the male are easy to make.

http://www.ebay.co.uk/itm/Yamaha-TDM-90 ... SwJQdXBQFD

Citroen Berlingo 2,0 hdi fuel lines also use the same connectors if you have a cheap car scrappers nearby