oops as in I couldn't help get a gadget for bike 
they took about 45mins to fit... only problem I had was with throttle cable exit on grip, as my brakes are so spongy on max throttle you cant get the lever right back... but I guess no one uses 100% brake on 100% throttle so no worries.
they take some time to heat up, but after 3-4 mins got to hot to touch with bare hand, will be trying tonight on way home.

they took about 45mins to fit... only problem I had was with throttle cable exit on grip, as my brakes are so spongy on max throttle you cant get the lever right back... but I guess no one uses 100% brake on 100% throttle so no worries.
they take some time to heat up, but after 3-4 mins got to hot to touch with bare hand, will be trying tonight on way home.