Tuesday
Jan052016

New Year, New Name: Juiced Bikes

"Juiced Riders Electric Bikes" is now "Juiced Bikes" 

Along with a new name comes a new logo...

 

 

And a new web address...

http://www.JuicedBikes.com

 

 

And a new headquarters location...

Juiced Bikes
1085 Bay Blvd, Ste B
Chula Vista, CA 91911
Tel: 619-746-8877

 

 

More to come from Juiced Bikes in 2016 and beyond!

 

 

 

Tuesday
Jul142015

Juiced Riders featured in the July 2015 issue of the Bicycle Retailer Magazine

Monday
Apr202015

Tektro Dorado HD-E710 (HD-E715) Brake pads available from Amazon. 

The Tektro Dorado (HD-E715) brake system provides the highest level of braking performance available for e-bikes. A growing number of high performance e-bike use this brake. Replacement pad availability was difficult to find until now

We have ordered a bunch of replacement pads (D40.11) and made them available online through Amazon Prime. You can get them faster and with free shipping through Amazon's streamlined fulfillment system. 

Order Now

Sunday
Nov162014

A look at how we road test our bikes. 

We test U500 E-bike up a 3,000ft climb and extreme wet for over 2.5 hours on a single charge. The bike made the trip with charge to spare.
 
It is one of the many “Double Dragon Cave” climbs we make to test the durability of the bikes in difficult conditions. Lab testing is important, but nothing can replace testing in the field. 
 
This uncut video shows a stock bike, but with a few new parts being tested. This bike returned to the factory and taken apart to look for ways to improve the product. We take quality and reliability very seriously. 

 

Wednesday
Nov122014

Largest battery capacity on the E-bike market! Yes, we checked…

Nothing will wipe the “e-bike grin” off your face faster than a flat battery. It's just simple math:

More battery capacity = More range and more fun!

The U500 (ODK V3) has the largest battery capacity of any street-legal e-bike. And not by a small margin.  

We calculated the Watt-Hour battery capacity of EVERY e-bike on the U.S. market. 231 different models were included. 

The results are dramatically illustrated below:

[Zoom in] 

[Contact us to have your bike added to the database]

Tuesday
Aug192014

Juiced Riders ODK U500 (V3) Now Shipping!

 

New orange clear-coat option.

It has been very challenging to ramp up production, but we are finally ready to ship more ODK U500 Utility Electric Bikes. 

The car-replacement e-bike category is very demanding on the product. Our quality and performance requirements go way beyond anything our suppliers have been asked to produce in the past.

Here is a quick look behind the scenes:  

 

 

 Vimeo / Youtube

The bikes are in stock at our San Diego, CA warehouse. We also have the new custom front baskets and Cycle Analyst adaptor cables. 

The bikes are $3,199 each and we have a special offer for FREE SHIPPING until Sep 1st, 2014.

Contact your Local Dealer or Shop Online

Monday
Apr212014

Video overview of the ODK Version 3 posted online

Practical Cycles has posted a nice video overview of our latest bike. The video is posted below. 

Tuesday
Apr082014

Obsessing over every detail: Scaling things up. 


Taking flight: As we move toward larger production volumes, every little detail becomes critical. There is a lot of coordination needed with our suppliers so the final product can go together smoothly. But the first step: Get on the flying bus... 

 


Back in the office: My remote desk at Luyuan Electric Vehicle Factory one of China's top e-bike makers. 


Luyuan E-Vehicle Factory Museum: The bike that started it all. This one was made around 1997. Our U500 is fundamentally very similar. Now Luyuan pumps out nearly 2 million e-bikes yearly. 

 

Obsessing over every detail. 

 

Long meetings to discuss how we can optimize our production. We work to find the bottlenecks that slow down assembly. 

 


Testing out some prototype accessories and dreaming up some new ones...

 

We hit the road to visit some suppliers.

 
A visit to one of our battery suppliers. They are the second largest battery maker in China. They also manufacture roughly half of all the batteries for Apple’s iPad... that part of the facility is strictly off limits.

 

This is a super clean facility with lots of automated equipment for creating the BMS and packing the battery cells. Unfortunately, some parts could not be photographed. 

 

The Lithium 18650- sized cells come from Samsung with slight variations. For maximum performance and reliability, cells need to be carefully matched to make a single battery pack. This machine automatically measures and groups cells together. 

 

The internal bracket system keeps the cells in place and also helps to keep them cool. The U500’s relatively large battery pack is not easy to make. One U500 battery uses 3 to 4 times as many cells as a normal e-bike. Each battery has over 100 cells. We demand the best. 

 

On the road again: It is best to stay well away from this monster. 

 

Tianjing E-Bike show is a good sized event. It is something like a Chinese Interbike, but almost all e-bikes and mini cars ...and loud pumping music. 


Luyuan's super booth. Wall-to-Wall LCD this year. 

 

The booth has a "outer-space" theme complete with Tron-like outfits. 

 

Walking the floor: Even Honda brands some e-bikes. The Asian, mainly Chinese e-bike market is huge and insanely competitive. It is also very reginal and localized. 


Giant's Momentum sub-brand: A nice looking bike designed to transport a hot cup of gourmet coffee back to your studio apartment. 


Finally some down time. Tianjing’s answer to Shanghai’s Nianjing road. The sky is hazy from smog, but soon China will take the lead in the whole "green" movement. 

 

 

 

Monday
Mar242014

Building the perfect front basket

There is no suitable basket that already exist so we must invest the resources to make our own. 

  

The latest prototype front basket is being tested on our factory runner which has accumulated a few thousand miles over the winter. 

Because the basket mounts to the frame and not the handle bars, The weight will not effect the steering. 

 

Here with 50lbs in the basket, the bike feels agile. The bike can even balance on the side kickstand without tipping over. 

It is made of stainless steel and powder-coated. The basket mounts perfectly on the ODK V3’s front accessory mount. We have a little more time to make some adjustments before time’s up and we need to start tooling for production. 

Monday
Feb032014

2014 Juiced Riders ODK U500 V3’s are now shipping!

Batch testing U500 V3 production bikes. San Diego, CA

Just in time: The 2014 ODK U500s are now shipping!

Thank you for your patience as we carefully work through the pre-orders. 

Monday
Jan202014

Juiced Riders eBikeShare in San Francisco

Q: What’s more efficient than driving a 3,000-pound car around and looking for parking? 

A: Riding a 73-pound e-bike and not looking for parking! 

Juiced Riders and A2B can now be rented from San Francisco’s eBikeShare pilot program! 


Thursday
Jan092014

The first production of ODK V3 e-bikes are on the way!

After a short delay, we are happy to have shipped the first production of our 2014 ODK Utility E-Bikes. The fully assembled bikes stack exactly in the container with only inches to spare for a couple of extra boxes. 

The bikes will arrive to our San Diego location for customization and final inspection before going out to waiting customers. 

Stay tuned for the list of accessories and custom parts!

 

Monday
Dec302013

Bringing the best e-bike to market (Photo Gallery) 

Monday
Dec162013

Production Update: ODK 3.0 Working Overtime

All of the various parts are arriving at the assembly factory. We don’t waste any time taking them down to the lab for testing. The checks are to verify that the parts arriving from suppliers meet the correct specifications. We are going seven days a week and overtime for 6 of those days to fill the pre-orders. The first few production units are undergoing some road test. The bikes will be assembled relatively slowly for the first few production runs. Here is a long overdue update:

V3 production frames hit the gym

The frames arrive from the frame supplier. Units from the frame batch are immediately taken to the gym for measurement and load testing. We perform the bicycle standard test at 75 kg (165 lbs) and also a test at 150kg (330 lbs) intended for scooters. The test simulates years of use. We can monitor the frame quality as the production ramps up.

The custom designed handle bars work up a sweat.  

 

The road most traveled

The wheels are tested over a 1cm bump surface with a 64 kg (141 lbs) load over a single axle. We can test various wheel configration to determine the strongest combination. This test takes all night to run, then we re-check the tension of each spoke.

 

Merry go round

The frames and forks take a few trips on the partially automated painting system. The frames can take up to 5 trips through paint booth and the oven depending on the color. The logos are applied just before the final coat of paint. The frame is still warm as we assemble the first few units for production-bike road testing.

 

Thinking inside the box 

The new shipping boxes arrive. The new “7-layer” boxes are much stronger. The bikes will ship assembled and nearly ready to run after a battery charge. The individual battery shipping box is also improved. 

 

Meanwhile

We also find some time to experiment with some prototype parts.The new mounting system provides exciting opportunities for new accessories. The custom front basket is still under development. The prototypes are powder-coated and fitted to the bike. The basket is attached with four 8mm screws. 

Because the basket mounts directly to the frame, the ride is super stable when loaded. We did some destructive test on the basket and continuously work to improve the design. The goal is to find the best balance between weight, strength and style. The basket should be ready in the spring. 

 

Unlike other frame mounted baskets, the ODK V3 accessory mount does not puncture the downtube which can significantly reduce lifespan of the frame. 

 

A battery of tests

The new V3 pack (right) is nearly the same size as the V2’s but around 45% more energy capacity. It makes better use of the available space, while maintaining backwards-compatibility with V2 bikes. We settled on the Samsung 18650 cell which gives us a good balance between performance, cost and availability. The case needed to be totally re-tooled to fit the new cells. The charge and discharge ports are moved to the same side. An illuminated switch with improved waterproofing is now used. There are two fuses for improved reliability. The aesthetics have been refreshed, including a darker color.  

A normal battery load test runs at 10 Amps, but we blast the V3’s pack at 20A (about 1000 Watts) continuously until it is depleted. This test would empty a normal e-bike battery in less than 20 minutes. The new pack can sustain this rate for about an hour before the battery management system steps in to protect the pack. However, the controller will limit this situation from occurring when the pack is used on the E-bike. 

 

The pack gets a hour-long shower to verify the water resistance.    

 

Motor and electronics

Some motors are pulled for dyno testing. We can determine how consistent the motors are from batch to batch. 

Some special test are conducted to push the limits of the system. Do not try this at home!

 

Sunday
Nov102013

Production Update: ODK 3.0 Disc Brakes Upgraded

An electric bicycle can travel much faster than a normal bicycle. The rider maybe carrying a load which will increase the stopping distance. One of the top feature request  for the ODK e-bike was to include a rear disc brake. 

To incorporate the rear disc brake, the frame needed to be redesigned and a new 3-speed hub was required. The rear dropout now has a horizontal opening with 135mm spacing. Now most all internally geared hubs with disc brakes can be used. This includes 5 to 8 speed hubs and NuVinci N360 hubs.    

With this new setup, we decided to equip, as standard, the best disc brakes available for e-bikes with cost not being the major consideration. 

We chose to use the  Tektro HD-710E which is the latest generation of hydraulic disc brakes designed for electric bicycles. Both front and rear axles use this setup. They are 100% compatible with bicycle standards so they can be serviced at any bicycle shop.

The stopping power is incredible. The rider will feel confident that the bike can stop rapidly under any weather condition. The hydraulic braking system requires much less pressure on the lever to slow the bike down. Modulating the braking level is easier as there is no "squishy" feeling that is normally experienced with cable-pulled disc brakes.

One major advantage of the hydraulic braking system is that both pads move toward the rotor and self-adjust as the friction material wears down. On more basic cable-pulled disc brakes, only one pad moves toward the rotor and the stationary pad must be manually adjusted. This can make cable-pulled disc brakes difficult to adjust, noisy, and eventually give reduced performance.

Here are some features of the Tektro HD-710E which makes it very suitable for high performance e-bikes. 

 

Brake Cut Switch

One feature that all electric bikes must include is a brake cut-off switch. This switch cuts the power to the motor when brakes are used. Most higher-end disc brakes do not have this feature, but it is included with the new brakes. 

 

Brake Pad Material and Size

Above is a closeup of the new brake pad compared to standard brake pad. The surface area is much greater resulting in better stopping power and longer service life between brake pad changes. The pad incorporates a high performance metal ceramic compound which glides more consistently over the brake rotor. There is less of the "scratchy" feeling felt with lower-end disc brakes. 

 

Ease of Servicing

There are now two disc brakes (front and rear) so the stopping duty is better distributed between the two systems. Pad changes are less frequent. The pads self-adjust and require less fiddling to hush a squeaky rotor.

 

Improved Lever Design

Almost all of the high-end brake levers have very short blades designed for mountain bike use. This setup is not appropriate for road going e-bike. The  Tektro HD-710E has a 4-finger blade with distance adjustment to suit the rider's comfort. The large blade has a ball-shaped end. The overall design is also very suitable for winter riding where gloves will be used. 

 

Thicker Brake Rotor

The brake rotor is thicker than a standard rotor and has more metal material. This will help with heat dissipation and reduce the chance of getting warped if bumped. Both front and rear use the same 180mm rotor and pads which cuts down on parts variation. 

 

Fluid Level Window

One impressive feature borrowed from the motorcycle industry is a fluid-level window. There is no need to guess the brake fluid level. The rider can know immediately if the reduced brake performance is the result of low brake fluid. 

 

Slim Profile

One issue with hydraulic disc brakes is their girth. The Tektro HD-710E has a slim profile which allows it to be used with the large 500-Watt BPM motor without touching the side of the hub. The entry angle of the cable hose can be pivoted to fit a bike's unique frame design.  

 

Now accepting pre-orders 

 

 

Friday
Nov012013

Production Update: ODK 3.0 Controller System

The electronics have been upgraded to make the bike more robust and provide higher performance. Our goal is to make the electronics as simple as possible, cutting down on time needed to service the bike. 

Reducing the system's complexity reduces the number of failure points. We target 10 minutes replacement time for any electronic component including the battery and motor. Here are some highlights of the ODK Version 3's new electronics system. 


New Wiring System


It takes considerable effort to coordinate with all the parts suppliers to ensure that everything works properly. The 1-into-4 wiring harness has upgraded quick connect plugs. The new connectors now have a more attractive outer stainless steel lock-ring to prevent accidental disconnection and provide improved waterproofing. The cable design makes it impossible to incorrectly install a connector plug. 

The motor's wire can disconnect near the controller and also near the motor. This makes both tire changes and controller swaps much easier.

 

Controller Programming

The controller sends power to the motor when you twist the throttle. The sensorless controller has been reprogrammed for smoother acceleration. It takes into account the speed of the bike when delivering the power to the motor. There is reduced chance to slip the front wheel on a slippery surface even when giving full throttle. The delay in the throttle experienced on the V2 bikes after a brake cut event has been reduced.   

The controller now uses 12 Transistors instead of the 9 used in the previous version. The reliability of the controller system is improved. 

 

Upgraded Throttle

The new half twist throttle from Zannx has a more progressive throttle response. There is less on/off-ness than the previous Wuxing throttle. Also the throttle needs to be twisted less before the motor starts turning. Additionally, the larger grip feels nicer in your hand. Low speed control is smoother and easier to manage. 

 

Now accepting pre-orders