We sell and service Human Power Augmented a.k.a. Electric bikes and ride them enthusiastically ourselves. See also our folding bikes at Folding Bikes West.
You may phone or visit our store to place an order. No on line purchasing is offered. Pick up in store or shipped.
Electric Bikes Northwest
4810 17th Ave NW
Seattle, WA 98107 - Map
ph: 206/547-4621
Email form
Spring Hours:
Monday thru Saturday: 11–6
The SLA or Sealed Lead Acid battery for bicycle propulsion has been perfected over the years and can provide an attractive option depending on the individual rider application.
Please note: While the figures below are indicative of our own experience absolute numbers shall vary significantly depending on battery specification, charging protocol and how, where and how often the bike is ridden.
Here's how the SLA battery compares to Li-Ion:
The commonly used 24V/10-12 Ah pack, consisting of two batteries, costs about $90 to replace. If lasting 3 years thus $30/year. A $500+ replacement Li-Ion battery lasting 5 years would run $100+/year.
Half or less the miles per charge but still up to around 10 miles. Many of us do not ride farther and when we do top-off charging opportunities are often found.
A 24V/10Ah pack weighs about 16 lb while a 24V/9Ah Li-Ion battery weighs about 6 lb. Ten lb can of course be an issue if much lifting is involved. As far as riding and handling even a 'mere' 250 W motor shall, on most rides by most riders, not notice a mere 5% overall weight difference, i.e. bike 46 lb + rider 150 lb + 16 lb SLA = 212 lb versus 46 + 150 + 6 = 202 lb.
iZip Vibe
Kits: 250 W by Clean Republic for $395 and 350-500 W by E-BikeKit for $585.
iZip Vibe: This superbly comfortable 2012 model, with one 24V/10Ah SLA battery, is $999. In case you find yourself riding farther than you had anticipated double your range by simply adding a second complete $129 battery case, that fits instantly in the dual slot custom rack.
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