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10 March 2016 - 10:06pm
 
 

ICE Sprint X RS-26 with 90mm drum brakes and 700c Bionx electric-assist

 

This is a custom build-up of an ICE Sprint X with a rear suspension, Bionx 350W electric-assist built into a 700c rear wheel, and 90mm Sturmey-Archer drum brakes.

The Sprint X has fancy wheels but they are usually built around front disc hubs and a conventional rear hub. In this case, the owner opted for the long-wearing, low-maintenance Sturmey Archer 90mm drum brakes. Since the trike is motorized, the slight weight penalty was not a factor.

She also wanted the largest rear wheel size. We found that a 700c rear wheel would fit with a few millimeters to spare. We custom-built the rear wheel around a Bionx 350W motor supplied from a previous installation. The larger wheel-size was not compatible with the standard rear V-brake parking mechanism, so we used conventional brake levers with locking buttons.

She also specifically wanted the SRAM X5 twist shifters over the standard X bar-end shifters.

We looked at a variety of battery mounting options. A tensioned, hanging system was the lightest and most elegant solution. We used the strength of the seat rails to hold the battery. A simple water-bottle cage holder was mounted to an upper seat-rail. We stabilized it with a custom-made brace to the next rail down. The cable length was perfect and the battery slides easily in and out of position. Its location is central and out of the way. The weight of the battery support system is minimal.

 

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Information

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Face-time with ICE. Ask all of your questions. Find out what happens behind the scenes. And, try trikes, trikes, trikes... including the fully automatic ICE Adventure electric trikes.

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