At the end of the dirt road, my confidence in the Kupper system solidified, and a trip down the highway triggered no concerns. I also mounted the Kupper Mounts Bike Carrier on the rear door of my van, and the experience was identical. The kayak roller loaderr frame is equipped with rolling assist foam, which protects the bottom of the kayak from scratches. The rolling structure is smooth and you will feel at ease. The carrier and bicycle can be mounted in as little as 2 minutes and removed in seconds to retain the gas mileage and looks of the car while also allowing use on multiple vehicles. The Kupper Mounts Bike Carrier proved secure with a light road bike even on rough dirt roads. Kupper Bike Mounts: Massive Suction Cups If you don’t know what ABS plastic is, let me debrief you. This sort of plastic offers a delicate balance of impact, heat, chemical and abrasion resistance, dimensional stability, tensile strength, surface hardness, and more. It remains rigid and sturdy even at significantly low temperatures. I’m not done by a long shot! It’s so powerful that each of the 6” mounts can pull a 200-pound force and maximum load capacity 60 poudns. It’s huge for single bike! Also, if you fully seal it, it will hold up to a staggering 48 hours! The red line will warn you of vacuum loss. So, no guessing game there.

SUCTION: Don’t worry about the vacuum loose, the 8” suction cup has powerful suction that can hold up to 48 hours if fully sealed. The red-Line Indicator warns user of any vacuum loss. When it shows less than 100% vacuum left, simply pump the plunger until you reach the original vacuum pressure without removing the cup. Add our telescoping loading bars for easier loading and wider carrying ability. Up to 20″ of added width on each side with loading bars fully extended. Loading bars extend and adjust to various widths to fit many requirements. Now, you may ask, wouldn’t the cup slide? As a matter of fact, no. the cup doesn’t slide because the friction created by both the cup and surface keeps it from sliding. But to work like this, you have to take care of few things first. Don’t get disheartened. They’re not tedious at all. At an unmounted 9-inch diameter for the front suction cup and 6-inch diameter for the rear, Kupper Mounts uses “bigger is better” logic to create enough vacuum and surface area on the vehicle to quell concerns.

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When you’re pumping it, simply keep pumping the plunger until you reach the original vacuum pressure without removing the cup. Mount your bikes after that, and you’re good to go. Rough sections of the dirt road caused no loss of suction. Plus, this second round of mounting the carrier and attaching the bicycle took 2 minutes — and I wasn’t at all rushing.

This warranty is given in lieu of all other written or oral warranties, express or implied, including without limitation implied warranties of merchantability and fitness for a particular purpose, and are limited to the duration and specifications of this warranty.

Specifications

Don’t forget to clean the surface too. If it’s dirty or has any dust on it, the suction cup will not adhere to it properly. Don’t worry about the vacuum loose, the 10” suction cup has powerful suction that can hold up to 48 hours if fully sealed. The red-Line Indicator warns user of any vacuum loss. When it shows less than 100% vacuum left, simply pump the plunger until you reach the original vacuum pressure without removing the cup. A gentle reminder: If you want to enhance the suction power, you can rub a tiny dab of Vaseline or cooking oil on the rim of the cup. This procedure works like a charm. Protect Car Paint】Rubber suction cups can prevent your car paint and sheet metal from being damaged, Velcro straps are used to fix the cranks, once again reinforced the stability of the bike, you can take the bike for road trips or camping with confidence and let the bike travel become reality.