Just because temps are dropping and the winds are blowing outside, I’m not ready to garage the bike and call it a season just yet. But riding cold isn’t the funnest thing in the world to do and cold can drain a rider’s energy fast. For those who refuse to let frosty weather get them down, you have an ally in Tour Master’s Synergy Electric Heated Full Pant Liner.
 
The pant liner’s look like a thick pair of black sweats. The outside shell is made of smooth Ripstop Nylon while the inside has a soft, taffeta lining. In between the two layers is 60 gm Polyfill insulation to aid in heat retention and carbon fiber heating elements that are spread throughout the pants. They easily fit under a pair of snug-fitting riding pants, are very comfortable and fairly lightweight. A Men’s Large (34-36) fit me perfectly and I barely noticed them under my regular riding pants. The Synergy Full Pant Liner has an elastic waistband and a convenient zipper on the front for when it’s time for a pit stop.
 
The heated pant liner comes with a Solid State, electronically controlled thermostat. A convenient nylon strap that Velcros around your thigh is included so you can clip the heating controls easily within reach, but be careful because the clip slips out easily. Two big buttons make it easy to turn off and on, while small High, Medium, and Low lights let you know what setting you’re on. The system is easy to plug together and the buttons are simple to use even with gloved hands.
 
The one trick to the pants is that you’ll need to hook the power lead wiring harness to your motorcycle’s standard 12-volt battery. In my case, I had to remove five bolts to take the small pillion pad and seat off the 2010 Honda Fury to access the battery. Hardest part of the installation was getting the stubborn bolt on the Fury’s battery loose. Besides that, it was cake. Once I got it off, the leads slip right on, I replaced the bolts, ran the wires under the seat and put the seat back on. Total time, ten minutes tops, and all it required was an Allen wrench for the bolts on the seat and a Phillips screwdriver for the battery screws.
 
First time I turned it on, I set it on high and had heat on my thighs by the time I backed out of the garage and took off. The next morning I put it on the 'Low'setting to see how fast it heated up and I didn’t feel any heat right away, so I switched it to 'High'. I recommend setting it on 'High' first, then adjusting it to the proper temp. On the 'High' setting, the hottest spots are on the tops of the thighs and the inside of the calves. It was in the mid-40s this morning on my 30-mile ride to work, but from the waist down I was warm and toasty.

Being physically connected to the bike takes a little getting used to. Be sure to hook up the Synergy power lead before you put the keys in the ignition and turn the bike on. If you don’t, it could cause a power surge that could damage the vehicle’s circuitry and the garment’s heating elements. Also be sure to jump on the bike first before you plug in or your feet will snag the wires when you try to mount the bike. Have the temp controls already plugged into the pants and then after you’re comfortable in the saddle, plug the temp controls into the power lead wiring harness. Push the green ‘On’ button, choose how hot you want it, then scoff at the cold around you.

The Synergy Heated Pant Liner is machine washable, with stipulations. First disconnect the temperature controls, then machine wash in cold on gentle or delicate. Don’t throw them in the dryer, but air dry instead. Also, don’t soak them in the washer for an extended period and don’t wring dry, as either could damage the heating elements.

For full-body warmth, the liner can be connected to a Synergy Jacket Liner and Synergy Heated Leather Gloves. Talk about having confidence in your product, the Synergy pant liner comes with a three-year limited warranty that covers the temp control, heating elements and electrical connectors. Granted, they are seasonal wear, but if I could get three winters of riding out of them, I’d be stoked. Now that I’ve tried a set, I wonder why in the hell I didn’t hook up a pair of these a long time ago.
 
MSRP - $152.99 at the Motorcycle Superstore
Available in sizes X-Small to 4-XL
Check out more Tour Master Heated Gear!