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Excessive heat from Thruxton R

6K views 17 replies 10 participants last post by  saddlebag 
#1 ·
I'm surprised at the amount of heat coming from my Thruxton R after an hour or so of use. Is this a design fault? It would appear that the bike needs a bigger rad!!:frown2:
 
#2 ·
I'm surprised at the amount of heat coming from my Thruxton R after an hour or so of use. Is this a design fault? It would appear that the bike needs a bigger rad!!<img src="http://www.triumphrat.net/images/TriumphRat_2015/smilies/tango_face_sad.png" border="0" alt="" title="Frown" class="inlineimg" />
This is what the radiator is supposed to do: radiate engine heat and blow it onto your legs. What’s the temperature outside? It’s 90 F here. In the winter, I will appreciate that heat if the fan ever comes on.
 
#4 ·
It is also hot here the low 80's. I'm not feeling it when i'm moving as most of the heat is dissipating before it reaches me. i can feel it when i'm stationary at the lights, it seems excessive. Even on fully faired bikes, i would feel heat from the engine but not like this and previous naked bikes wouldn't throw out this much.
 
#9 ·
+1 on the decat, takes the heat away from the bottom of the bike.


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#10 ·
Is this your first motorcycle? My Thruxton R was one of the best motorcycle when it came to temperature...

Go try a Harley Softail or one of their Touring bikes... I had those and can tell you that those are by far the worse crotch burning hot motorcycles I have ridden...

The ThruxtonR was so comfortable riding in the summer here in Florida... So was my CBR600RR, but the Thruxton got that one beat when it came to comfort...
 
#14 ·
I too have a 19 Street Twin and have noticed the fan shrouding and location of the regulator/rectifier has been changed on this and other models, affixed to the rear of the radiator. I've ordered a TTO, Trail Tech temp gage to do some investigating. It won't really hurt anything as is but I suspect the fan runs more often on these models
 
#15 ·
I've installed the TTO temp gauge and gathering data now. Talked to a Speed Twin owner today and I noticed they must have mounted the R/R under the tank! More investigation needed. So 3 different locations of R/R on various WC Twins and 3 different levels of radiator to air surface exposure. Hmm.
 
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