|Jagg Oil Cooler
by Martin Hackworth
Photos: Martin Hackworth. Jagg
We dig almost every feature
of our CRF450X
a lot - especially things like
the twin-sump lubrication system that oils the engine and transmission
separately. We are amazed to find how much dirtier the tranny oil is
every time we change it! One inconvenient feature of this
arrangement, however, is that there are only about 693 precious
milliliters (about 7/10 of a quart) of oil between a smooth running
engine and a Chernobyl style catastrophic meltdown. For long (1000+
mile rides) like the Tour
of Idaho this is
simply cutting it too close.
Even though the CRF450X power plant has twin radiators with relatively large overall capacity the engine still runs hot. This places additional stress on the engine and engine oil. After just a few summer rides where we nervously monitored engine oil levels, we couldn't take it anymore. An afternoon on the web perusing info about external oil coolers yielded several options that would both increase capacity and help keep the engine oil cool under stress. There are several systems out there, but the only one we found that did everything we wanted and was truly bolt-on was the Jagg Oil Cooler, manufactured by Setrab. A few minutes on the phone with the knowledgeable folks at Jagg and we had a unit for our CRF450X on the way.
The CRF450X Jagg oil cooler system consists of a radiator, a mounting bracket for the radiator, a filter adapter, two hoses and some heat tape. On a stock CRF450X installation would be a snap - but the presence of our Acerbis 4.75 gallon tank required some modification to the supplied bracket in order to slightly relocate the radiator. This was accomplished with some minor fabrication of the supplied bracket.
The Jagg system increases the oil capacity by about 50%, and, according to our infrared temperature monitor, helps the bike run much cooler. We've been able to go on extremely long rides in very hot weather
|without worrying about oil
capacity, usage or
heat. The Jagg oil radiator (even with stock fitment) is tucked in
safely behind the right water radiator - but on our bike it's
protected by the Acerbis tank. The only small nit we have with our unit
is that the plumbing on the filter adapter was installed in such a
manner as to bind against the oil dipstick cap. We fixed this pretty
Price Paid: $264.95 - Jagg/Setrab USA
The Good: Inexpensive and easy to install.
The Rad: It keeps your oil cooler and increases capacity to boot.
The Gnarly: You have to be careful to keep the filter adapter clean when changing filters.