Anyone have a view or an opinion on the effect of a rad guard on cooling? Some of the guards seem to block a good percentage of the radiator and does this affect cooling, particularly in higher temperatures? Also, are mesh type guards more efficient?
at low speed, radiator efficiency is limited by the fan pulling air through... guard or not can run hot in hot weather
and at high speed there is likely a big enough pressure difference front to back that _most_ guards make little difference..
and temp is controlled by thermostat...
(and does depend on the bike and how much cooling overhead the radiator has.. my NSC was fine in 40+ temps, no difference to engine temp)
I reckon the Evotech type hex guards have almost no effect..
but ones like this or worse area coverage? not so sure
Last edited by oldcorollas; 07-26-2019 at 03:36 AM.
I have a guard on mine like the one in the NC700 pic. Its been on pretty much since I got it in 2012 and I really cant remember if it runs hotter. Its run fine all the time in any weather even in this hot spell or when I've been to Europe on it. Its worth it to stop stones getting in there. Mines a Beowulf one
A guard is definitely worth the peace of mind for me regarding possible damage. However, i’ve been more aware in the recent very warm weather how the engine temp soon climbs and it got me thinking more about how a guard might be affecting the cooling.