Roll Up Generator Stand

Roll up bike w light logo

The Roll Up offers similar performance to our Generator Wheels, but weighs and costs less, and doesn’t require you to change out your rear wheel. It uses the same power generating elements found in our Generator Wheels but in an external roller, not inside the hub. It boasts a very large roller with a gritty composite surface that simulates riding on the road better than small rollers found in competing products, which waste energy as heat and cause more tire wear. The large contact patch formed between the 6” roller and your tire means less force is required (roller pressure). You won’t see any deformation of the tire. More of your good clean Pedal Power goes into the device you’re powering. Plus, the large roller functions as a flywheel to  smooth out your pedal stroke and make pedal power feel pleasant. And it’s quiet!

Roll Ups in use at UCLA's Ecochella concert.

Roll Ups in use at UCLA’s Ecochella concert.

The unit is simple and compact to store. It’s a great way to involve local team members and volunteers who will supply working bicycles on the day of an event.

Features:

  • Fits almost any bike. No need to change any part of the bike.
  • Attaches & detaches in minutes. You roll right up!
  • Highest power capacity tire rolling dynamo on the market
  • Standard model fits 24”, 26”, 29” and 700c wheels
  • Small model fits 20” wheels (many kid’s bikes and folding bikes)
  • Internal LED lighting tells you it’s working and attracts attention
  • Internals (magnets, coils and wiring) are visible through clear case – teaching tool
  • The included stand elevates the rear wheel, allowing you to do other pedal powered activities in the future, such as blending and spin-art

Roll UP Generator Stand

Specs:

  • Generates 0 – 30v DC  Anderson connector output. Using a 21-speed bicycle or higher will give you the greatest range of output voltages.
  • Capable of generating 300W continuous output without getting warm. 300W sustained output is very challenging for most pedalers to sustain!
  • Weight: 20lbs

RTB Roll Up 20 inch bike

RTB Electrical Activities guide to “guide” you…

(click the image to enlarge)

electrical-activities-info-graphic-low-res
Compatibility & Ideal Bikes

(click the image to enlarge)

ideal-fbu-infographic-web-jpg

  • ~ Knob style QR skewers or axle nuts (stand not compatible with internally geared hubs with thru axle shifting)
  • ~ Tires with smooth center tread
  • ~ Geared bikes increase pedaling comfort – allow rider to find the ideal cadence
  • How many people will it take to power my laptop and projector, or pedalboard (or any device)?

    Pamela Parker’s pedal board at the Peace Day SF rally. Photo: Nio. Okay, so you have a device or set of devices in mind (like a laptop and projector), and you want to know whether it’s possible to power them with people on bike generators. Here are the steps to figure it out: First you [...]

  • Basic questions to consider when crafting your Pedal Powered Stage

    The technical needs of a Pedal Powered event vary greatly depending on audience size, venue, and power needs of musician’s devices. The questions in this post will help you to know what features are most important for you, and how much power you’ll really need. Please answer these questions and email us using the contact [...]

  • What are the elements of a Pedal Powered Stage?

    What follows is an explanation of the key elements of a Pedal Powered Stage. If you are ready to buy individual components, please see the Pedal Powered Stage products section of our online store. If you’d like a custom quote for a Pedal Powered Stage, please start by emailing us with the answers to our [...]

  • York Catholic School Board remixes Toaster Challenge at energy awareness assembly

    Toaster Challenge Recreated

    Sitting on the stool on the right side of this photo is an unassuming white form, but push the lever on it and you have a beast of a challenge — match the energy needs of an electric toaster by pedaling your hardest on an efficient bicycle generator. (more…)

  • What can I power with Rock The Bike Generators?

    What can I power with a Generator Pro or Electric Fender Blender Pro?

    Most common uses:

    AC Power — Use our Pedal Power Utility Box or create your own 24V Pedal Power system with a battery and inverter. Our Pedal Power Utility Box is a complete system that features:

    • Ultracapacitor (absorbs every last Watt of effort)
    • Smart LED pedalometer (shows up to 5 people how hard to pedal. Bigger groups can plug in our Tube Pedalometer).
    • 1000W Pure Sine Inverter.
    • Protected wiring

    USB Only: Our Cell Recharge Circuit and Cell Phone Recharge Desk both are capable of charging up to 8 devices at once.

    LEDs (dumb): This low-cost activity is also fun and beautiful when done artfully. Wire 12V flexible LEDs in 24V series, 36V series, or 48V series or any combination of the above. When used in combination, the lower voltage lights turn on first, and the higher voltage LEDs will light only when you pedal fast enough. To prevent overvoltage conditions from damaging the lights, you have to use enough of them that the pedalers are sufficiently tired out trying to keep them on. The rule of thumb is that these lights consume about 1W per foot. Depending on the age group of your event / school / setting, your pedalers may be able to create up to 200-400W of power. If you want to challenge them and keep your LEDs cool, you may have to use that many feet of LED. If you choose 36 or 48V series wiring, this is less of a concern. Measure with a voltmeter and try to keep the LEDs under 150% of their rated voltage, especially for extended periods of time (more than a few seconds). You can also reduce the voltage spikes that the LEDs see by pairing them with a capacitor.

    Ask about our LED kits!

    LEDs (smart) : sLEDgehammer

    Sound :   1 Bike / 1 Speaker

    In terms of the above list, what’s the difference between a Roll Up, Generator Wheel, Electric Fender Blender Pro and Generator Pro?

    The main difference is the Roll Up and Generator Wheel are capable of working well with 12v systems. The Electric Fender Blender Pro and the Generator Pro can technically be used with 12v systems, but the gearing will likely feel too hard. The Electric Fender Blender Pro and the Generator Pro are best suited to 24V systems.

  • Generators available from Rock The Bike


    Above: The Generator Pro

    We sell three types of complete Generator Bikes:

    – Generator Pro (our custom frame with wide size range and great branding possibilities)
    – Electric Fender Blender Pro (same but includes a bike blender so you can do two activities)
    – Mundo 500 (cargo bike generator)

    Rock The Bike's low cost, high-performance, smooth rolling generator.

    Rock The Bike’s low cost, high-performance, smooth rolling generator.

    And we sell two solutions for turning any bike in to a generator:

    – the Roll Up Generator Stand

    – the Generator Wheel 

    Electric Fender Blender Pro:

    human powered bicycle blender

    It has all the features of the Generator Pro, plus you can blend smoothies. For more info, please go here.

    Cargo Bike Generators: 

    cargo bike generator
    Examples include the Mundo 500 (above) and Xtracycle Generator. Each of these is capable of riding to your events with a load, then converting to generator use. Cargo bike generators can also become electric cargo bikes; though we no longer offer this conversion, we’ll point you in the right direction.

    Generator wheels to turn any bike into a generator:

    frictionless pedal powered generator

    The most affordable way to access our frictionless generator technology. You simply swap the rear wheel of your current bike and throw it on one of our stable stands. Great for custom bikes like El Arbol above, or for low-cost generators. Still extremely quiet and powerful.

    bicycle generator

    Above: Your bike can now be a generator, every bit as powerful and quiet as the ones we use at Rock The Bike events.

    Special lightweight or higher/lower voltage generators:
    We’ll consult with you to find lighter weight options for bike touring or specific application.

    Want your bike to generate power? Now you can, with a hand-built generator wheel from Rock The Bike.  You can also use it to upgrade your Mundo into an electric bike.

    These generators have gearing that is optimized for 24V systems but will function on 12V system. In order to use the power you generate, you’ll also need a Pedal Power Utility Box.

    Requires 2-3 weeks to build from time of payment. Please specify desired output connector.

    What kind of bike makes a good generator for our generator wheels?

    • Bikes with a wide size range
    • Bikes with good standover height
    • Bikes without rear suspension. Suspension (or “shocks”) makes a bike less stable when it’s mounted on a Stationary Stand.
    • Bikes with a front derailleur and 2-3 chainrings. These have a wider gear ratio, making it easier to find the right gear ratio.

    Cost:
    700 c – $450 (not suitable for cargo use) or $425 as add-on to Fender Blender Pro purchase.
    26″ – $525 (suitable for cargo use)
    24″, 20″ – $525 (not suitable for cargo use.

    Rentable: Yes

    In the Box:

    • Wheel with Generator Hub (in selected size)
    • Rectifier cable with 2′ lead to wheel and 20′ cable for the DC output.
    • 7-speed freewheel with 11-tooth cog for highest voltage range, or 1 speed on Electric Fender Blender Pro