Skyline pipe is the pipe to use and very durable.
It is ROAR approved and pending EFRA/IFMAR.
For us its legal so long as it conforms to any of the international bodies mentioned and the JMRCA.
main issue is 5mm stinger.
casterracing EX-1 Pro, SP Silver Arrow
TOP Racing Scythe, SP 17.5, SP GT Pro 2.0
TOP Racing Scythe, SP 4.5 V2, Hobbywing Xerun 120SD 2.0
TOP Racing Scythe, SP 13.5, Hobbywing Xerun 120SD 2.0