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> Electric Assist Bikes

Electric Assist Bikes

The E-Bike you've heard so much about, Trek's Super Commuter, is now in stock! Easy pedaling up to 28 miles per hour, tackles hills with ease, and extended range thanks to Bosch's 500 WA battery (their largest!).

Electric bikes amplify your pedaling power and your ability to do and see more. Trek and Electra e-bikes make more possible. They're quick and smooth, with predictable, easy-to-control power and a long-lasting removable battery that recharges at any household outlet.

Chain Reaction Bicycles has Bosch & Shimano-certified staff to keep your e-bike in tip-top shape for years to come. 

21 Results
Trek Powerfly 8 FS Plus - 2017
$4,999.99
Product Rating
 
5.0 stars
 (2 Reviews)

Powerfly builds on its success with a new full suspension lineup that borrows from Trek’s proven off-road legacy. The full suspension Powerfly makes mountain biking even more fun. The Bosch Performance CX pedal assist system makes for a supremely capable bike that allows you to go farther and have… [more]

Trek Super Commuter+ 8S - 2017
$4,999.99

There’s no reason to hit the snooze button when your morning commute feels like a dream. Super Commuter+ is the electric bicycle that makes getting where you need to go exactly where you want to be. Super Commuter+ pairs TREK's most advanced e-bike technologies with Bosch’s longest lasting battery… [more]

Trek Powerfly 5 FS - 2018
$4,499.99

Powerfly eMTB builds on its success with a new full suspension lineup that borrows from Trek’s proven off-road legacy. The full suspension Powerfly makes mountain biking even more fun. The Bosch Performance CX pedal assist e-bike system makes for a supremely capable electric bike that allows you to… [more]

Trek Powerfly 7 - 2017
$3,699.99
$3,999.99

Powerfly expands your boundaries. It combines Trek's proven design with the reliable propulsion of Bosch pedal assist technology, turning every mountain into a hill and every ride into pure enjoyment. End of the trail? Not for you! Especially if you're searching for a bike with the extra power to… [more]

Trek Powerfly 5 Women's - 2018
$3,499.99

Powerfly eMTB expands your boundaries. It combines Trek's proven design with the reliable propulsion of Bosch pedal assist electric bike technology, turning every mountain into a hill and every ride into pure enjoyment. End of the trail? Not for you! Especially if you're searching for an e-bike… [more]

Trek XM700+ - 2017
$3,499.99

This bike is fast! XM700+ is the commuting tool for bicycle commuters who are looking for an electric bike that supports up to a whopping 45 km/h. Say goodbye to parking fees and fighting for a space. This speedy electric bike will let you leave your car at home. Why not work out on your way to… [more]

Trek XM700+ Lowstep - 2017
$3,499.99

This bike is fast! XM700+ is the commuting tool for bicycle commuters who are looking for an electric bike that supports up to a whopping 45 km/h. Say goodbye to parking fees and fighting for a space. This speedy electric bike will let you leave your car at home. Why not work out on your way to… [more]

Electra Townie Commute Go! - 2018
$2,999.99

Go! to work. Go! to the gym. Go! the long way home. Townie Commute Go! is a battery-powered, pedal-assist bike that lets you ride like the wind without breaking a sweat. The comfort and control of Townie’s Flat Foot Technology combined with the Bosch Performance System offers four levels of power… [more]

Electra Townie Commute Go! Ladies' - 2018
$2,999.99

Go! to work. Go! to the gym. Go! the long way home. Townie Commute Go! is a battery-powered, pedal-assist bike that lets you ride like the wind without breaking a sweat. The comfort and control of Townie’s Flat Foot Technology combined with the Bosch Performance System offers four levels of power… [more]

Trek Dual Sport+ - 2017
$2,999.99
Product Rating
 
4.0 stars
 (1 Review)

DS Series is the ultimate hybrid: part refined city bike, part adventurous trail ride. Fast 700c wheels, capable suspension, and a light, strong frame make DS the go-anywhere choice. Why choose between road and trail? DS is built for adventure on or off the road, ready to take you from week to… [more]

Electra Loft Go! 8i - 2018
$2,799.99

Go! uptown. Go! downtown. Go! out of town. The Loft Go! is the perfect urban e-bike built to handle the rigors of the streets. With an 8-speed internal gear hub and four levels of support from Eco to Turbo mode, the Bosch Active System gives you the power to charge up any hill or head to the next… [more]

Trek Conduit+ - 2017
$2,799.99
Product Rating
 
5.0 stars
 (3 Reviews)

Conduit+ is a hard-working, lightweight, electric-assist commuter bike. Smart features like a smooth mid-drive motor and onboard lighting make quick, fun work of your commute. No car? No sweat. No need to hassle with four wheels and tons of steel when the smooth, powerful Conduit+ will take you… [more]

Trek Lift+ - 2017
$2,799.99
Product Rating
 
4.5 stars
 (2 Reviews)

Lift+ is a lightweight, electric-assist recreation bike that pairs an ultra-comfortable ride with the smooth, controlled, unbelievably fun power boost of our mid-drive motor. Where would you like to go? Whatever route you choose, Lift+ will take you there with ease. Long rides? Hills? Headwinds?… [more]

Trek Lift+ Lowstep - 2017
$2,799.99
Product Rating
 
5.0 stars
 (5 Reviews)

Lift+ is a lightweight, electric-assist recreation bike that pairs an ultra-comfortable ride with the smooth, controlled, unbelievably fun power boost of our mid-drive motor. Where would you like to go? Whatever route you choose, Lift+ will take you there with ease. Long rides? Hills? Headwinds?… [more]

Trek Neko+ - 2017
$2,799.99

Neko is a perfect hybrid: part refined women’s city bike, part trail ride, with fast 700c wheels, suspension, and a smart frame that’s DuoTrap S compatible for fitness tracking. Why choose between road and trail? Neko is built for adventure on or off the road, ready to take you from week to weekend… [more]

Trek Powerfly 5 - 2017
$2,799.99
$2,999.99
Product Rating
 
5.0 stars
 (1 Review)

Powerfly expands your boundaries. It combines Trek's proven design with the reliable propulsion of Bosch pedal assist technology, turning every mountain into a hill and every ride into pure enjoyment. End of the trail? Not for you! Especially if you're searching for a bike with the extra power to… [more]

Electra Townie Go! 8i - 2017
$2,599.99
$2,729.99
Product Rating
 
5.0 stars
 (2 Reviews)

Where you "Go" for your Townie® Go! matters. Chain Reaction Bicycles is a certified Bosch E-Bike service facility. We will get you the most out of your investment- the best Townie® Go! you can buy is from Chain Reaction Bicycles! Power when you need. Pedals when you don’t. Townie® Go! is a… [more]

Electra Townie Go! 8i Ladies' - 2017
$2,599.99
$2,729.99

Power when you need. Pedals when you don’t. Townie® Go! is a battery-powered, pedal assist bike that lets you ride like the wind without breaking a sweat. The ninja quiet Bosch Performance System offers four levels of power support from Eco to Turbo mode, allowing you to flatten hills and shorten… [more]

Trek Conduit+ - 2016
$2,199.99
$2,999.99

Partake in all the joys of riding a bike without breaking a sweat or ever getting tired! Trek's Conduit+ is the road-angel you've always dreamed about. Trek starts with a Alpha Gold aluminum frame and a comfortable upright riding position, and builds it up with quality components from Shimano and… [more]

Trek Transport+ (Demo) - 2013
$1,409.99
$2,819.99

Accomplish more by bike, way more! Trek's Transport is a longtail cargo bike that'll have you leaving your vehicle parked. With front and rear racks, as well as a useful cargo bag, grocery runs and gear moving will be an adventure worth looking forward to. This aluminum hauler rolls on sturdy… [more]

Oyama CX-E8D Folding E-Bike
$1,299.99

A quality E-Bike everyone can afford. Folding design makes it easy to store or put in a car, high-quality lithium-ion battery placed within the frame to prevent theft and improve balance, 250 watt motor, easy-to-use control, and a lot of fun to ride! Includes fenders, kickstand and heavy-duty rear… [more]

21 Results
 

Chain Reaction Bicycles is your local bicycle shop for the San Francisco Bay Area! Unlike some other shops, we are dedicated 100% to serving the needs of local cyclists; our offerings are exclusively available for in-store pickup. Our "northern" store is located at 1451 El Camino Real, Redwood City CA, 94063. 650 366 7130. Our "southern" store is located in Foothill Crossing Shopping Center, 2310 Homestead, Los Altos CA, 94024. 408 735 8735. Our hours and directions to our stores may be found here. We look forward to taking care of all of your cycling needs, including service! Mike & Steve Jacoubowsky, Partners, Chain Reaction Bicycles. Serving you since 1980!