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Ecospeed Mountain Drive EMtnD1-ESM7-S 700W Hi Torque Velociraptor (single chainring) Call for price

Electric Mountain Drive Unit 700W EcoSpeed motor system, Type 1: Upright Bikes
We still have a few left of our smaller 700 Watt high torque motor with EcoSpeed's Velociraptor™ Intelligent Motor Controller. This controller will work with almost any battery system from 24 volts through 48 volts. You can use a small battery to save weight or cost, or a large one for maximum performance. The controller will automatically adjust for whatever power that the battery can supply up to the rated maximum of the motor. The controller is software based, so that as we add features you can upgrade your controller to take advantage of them. Price includes clamps, choose sizes below.

Electric Mountain Drive for Upright Bikes and hard to fit Recumbents
Our Electric Mountain Drive™ (EMtnD) is our newest electric drive system. Designed to fit almost any bike, including road bikes, hybrids, mountain bikes with or without suspension, long cargo bikes, semi-recumbents and recumbent tadpole trikes.

The EMtnD uses a motor driven freewheeling crankset that replaces your current one. This allows the motor to propel the bike without forcing you to pedal along. When you decide to pedal, the freewheel engages and blends your leg power with the motor power. New for 2011, the freewheeling crankset is now designed and made by EcoSpeed. It now uses a high quality US made freewheeling unit and features a low Q factor design.

Also, while we still have a few 700 Watt motors and single IPS cranksets left over from 2010, all 2011 systems will feature the EcoSpeed triple crankset, our 1000 Watt high torque, low noise motor, and, of course, the new Velociraptor Intelligent Motor Controller.

Attach one to your bike or trike and climb the steepest hills, even on singletrack trails, and carry heavy cargo up hills without effort. It's a whole new way to bike and the greenest form of powered transport there is.

Electric Mountain Drive Units
We have two basic variations of our Electric Mountain Drive. The Type 1 is for standard upright bikes including road, mountain, and long bikes. The Type two is for recumbent trikes and bikes that have a forward boom containing the crankset. This includes the popular tadpole trike design.

The Type 1 now features our new mounting system which uses the bottom bracket shell itself to carry all forces. This means that the down tube attachment is not carrying any load and so can be made very light. We use a padded metal band type clamp that conforms to any tube shape.

The Type 2 still uses custom machined clamps to attach to the boom, which we make available at no added charge. We will eventually modify the Type 2 to use the bottom bracket attach design and so will be able to fit trikes that we currently cannot.
Requirements, Type 1
The Electric Mountain Drive, Type 1 will fit most upright bikes, even those with down tubes that are not round or straight. The bottom bracket should have a 68mm shell with 1.37" English threads -- this is most bikes. Other bottom bracket widths can be accomodated with a bit of tweaking.

Requirements, Type 2
The Electric Mountain Drive, Type 2 for recumbent trikes uses our precision clamps or quarter brackets to attach to the front boom. You will need about 8" of smooth round boom behind the bottom bracket to give room for the clamps. The bottom bracket should have a 68mm shell with 1.37" English threads -- this is most bikes. Other bottom bracket widths can be accomodated with a bit of tweaking.

More Info:
http://www.ecospeed.com/prodemtndu.html

We'll happily answer your questions and walk you through everything. Our Electric Mountain Drive Type 1 systems will fit most road, mountain, hybrid, or long bikes. We'll ask you a few questions when you call to determine if it will work with your particular bike.

At EcoSpeed, our focus is on building quality electric assist systems and supporting them with excellent service. We're confident you'll be happy with the result.
Brent Bolton
EcoSpeed Founder and CEO

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