NOTE: NO SHIPPING TO AUSTRALIA OR NEW ZEALAND UNTIL FURTHER NOTICE (Australia and New Zealand have both closed down USPS packages (First Class as well as Priority International) as of September 17, 2021 due to high levels of COVID.  We are waiting for them to announce their re-openings.

NOTE: NO SHIPPING BETWEEN OCTOBER 27 AND NOVEMBER 7, AND ALSO FROM NOVEMBER 12 THROUGH NOVEMBER 21, 2021. Our shop will be closed over both of those intervals, get your orders in by October 25.  We'll ship again from November 8 through 11, then the next orders will ship on November 22.


About Us started in 2005 with the development of the Thermo-Bob, a cooling system modification
to extend the life of the Kawasaki KLR650. We’ve grown into supporting the snowbike market as well, with an assortment of Thermo-Bobs and Engine Jackets to maintain engine temperatures and extend
engine life.


What is a Thermo-Bob?

The Thermo-Bob is a machined, hard-anodized aluminum external thermostat with a coolant bypass. It allows coolant to bypass the radiator when cold, speeding warm-up and allowing your engine to run at the temperature it was designed for.




What is an Engine Jacket?

For snowbike riders, an engine jacket helps keeps snow off of the engine and keeps engine temps up especially for cold powder riding days.







The following Terms and Conditions apply to the use of this Web site as well as all transactions conducted through the site.