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Revolights Arc: A Smarter Approach to the Bicycle Taillight's video poster
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A functional brake light with next-level visibility. Revolights technology now priced for everyone. Read more

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$78,017
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This project's funding goal was

A functional brake light with next-level visibility. Revolights technology now priced for everyone.

About this project

At Revolights, our goal is to make cyclists more visible on the road while giving them unprecedented functionality. Traditional bike taillight designs use only a small blinking red light for rear visibility and provide little to no side visibility. This leaves cyclists vulnerable and drivers straining to see them.

Our lights are different.

We take a smarter approach to design. We create safety products that are more stylish and functional than any currently on the market.

After two successful campaigns on Kickstarter, we’re back to introduce the newest member to our product family… the Revolights Arc [patent pending].

Since introducing our original idea via Kickstarter in 2011, we’ve been overwhelmed with positive support, but also paid close attention to feedback from the community.

One of the most common bits of feedback we receive involves affordability. Well, we heard you, and designed the Arc in response.

The lights mount in place of a fender (Revolights Arc Fender), or as an addition to an existing fender (Revolights Arc) and are designed in Revolights fashion to dramatically increase the rider’s visual footprint from both sides and behind.

The Revolights Arc is much more than just a taillight.

Sensors in the lights pick up on the rear wheel speed and use that information to create a functional brake light. The Arc is able to immediately alert shared road traffic when the bike slows down via one of two user selected brake modes:

  • Solid Mode - increased brightness
  • Blink Mode - faster, brighter blinking

Starting at only $69, the Arc is designed as an entry-level addition to our growing product family, making Revolights technology accessible to everyone.

The Arc utilizes Revolights’ innovative technology to provide cyclists with features and benefits long overlooked.

  • Dramatically Increased Visibility

  • Functional Brake Light

  • Anti-Theft

  • Compatibility

  • Multiple modes

  • USB Rechargeable Battery

  • Affordable

Industry Standard Bike Lights (left) - Revolights Arc (middle) - Revolights City (right)
Industry Standard Bike Lights (left) - Revolights Arc (middle) - Revolights City (right)

Dramatically Increased Visibility: Bright LED light piping enables the efficient formation of long, bright red arcs that create a dramatically enlarged visual footprint, significantly increasing visibility from both sides and rear.

Functional Brake Light: Intelligent speed-tracking sensors in the the lights are able to constantly track your riding speed. Using this information, the Arc lights either get brighter or blink faster to indicate deceleration.

Multiple Modes: Solid and blink modes, which are selectable when turning on the lights, have their own corresponding brake indicator. Choose your preferable mode of being visible!

Anti-Theft: By permanently riveting the lights into the fender, the Revolights Arc Fender makes the lights near impossible to steal without removing the entire fender. The Revolights Arc is designed so it cannot be removed without removing the wheel itself.

Compatibility: The Revolights Arc was designed to fit on almost any existing bike fender, and can conform to most all fender shapes and diameters. The Revolights Arc Fender will be offered in two models: a universal plastic fender and a 700c-compatible metal fender (similar to those currently mounted on Public Bikes).

USB Rechargeable Battery: Li-Poly battery charges directly into any USB port.

Affordable: Starting at $69 (for this campaign only), the Arc offers all those concerned with their personal safety access to Revolights technology at an affordable price.

Halftime Special!
Halftime Special!

The Revolights Arc: A stand-alone USB rechargeable light made to mount to your existing curved fender. While we’re still working to finalize the exact mounting method, we plan to have two options:

1. A permanent (anti-theft) mount

2. An easier to install and remove “interchangeable” mount

Revolights Arc Fender (Universal, Rear Only): The Revolights Arc permanently attached to a black plastic, universal-fit fender that easily connects to your bike’s rear seat stays. Great for quick installation / removal, and compatible with almost all bikes.

Revolights Arc Fender (Full Metal): the Revolights Arc permanently attached to a black or chrome full metal fender, which requires mount points on your bike (small holes near the rear axle). Great for permanent mounting; the most anti-theft option. Front fender included. See FAQs for full specs.

2014 PUBLIC V1 + Revolights Arc Fender: a single-speed PUBLIC V1 bike, red or royal blue, with the Revolights Arc pre-installed on a fender of matching color. Everything that a great city bike should be - fun, simple, lightweight, stylish and affordable. See FAQs for full specs and sizing options. Local pickup in Oakland, California available.

2014 PUBLIC V7 + Revolights Arc Fender: a 7-speed PUBLIC V7 bike, black or green, with the Revolights Arc pre-installed on a fender of matching color. Lightweight, steel-frame urban bikes suitable for all cities, towns and roads. See FAQs for full specs and sizing options. Local pickup in Oakland, California available.

Got questions about other PUBLIC Bikes? Email us at info@revolights.com for help!
Got questions about other PUBLIC Bikes? Email us at info@revolights.com for help!

Brake Light Feature

The Arc constantly measures the speed of the bike using a small magnet insert which is installed between the tube and tire on one's rear wheel. The magnet is detected by a sensor in the Arc each time the wheel rotates, allowing it to accurately calculate the bicycle’s speed. When the brakes are applied the Arc senses the bike slowing and triggers the brake light.

Installation

The Arc will be designed to fit on nearly any fender. We’ll continue to develop the mounting system until it can be easily and securely mounted so you won’t have to worry about someone snatching it from your bike. We plan on having multiple options for attaching the Arc to your fender, using either special straps or a more permanent screw installation. For those who don’t have a fender, the Revolights Arc Fender will mount to one’s bike similar to any standard fender.

Battery Life and Battery Charging

Charging the battery is simple and easy. The Arc battery pack is designed to be removed quickly and features a USB plug to allow you to charge it from any USB port. The battery will provide approximately 8 hours of run time, and will charge in under two hours.

Together we must raise the standards of bike safety to the level of other road-sharing vehicles.

Our motivation with the Revolights Arc is to address the issue of bike safety on the road by adding lighting functionality that has been long overlooked by the cycling industry (e.g. visibility / brake lights / hazard lights / potential turn signals).

Most importantly, starting at just $69, we’ve created a product that makes Revolights technology available to everyone.

Now anyone concerned with personal safety can access an affordable upgrade that will transform their bicycle into a more visible vehicle, allowing them to ride with more confidence.

We’ve gone through a number of iterations and are close to a final product, yet we still need to incorporate further design elements to get the Arc production-ready. This involves construction of a final prototype version before the Arc is ready to hit prime time.

Check out the development progression below:

's video poster
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 Video of Revolights Arc Prototype v1

Your financial backing will be used specifically to help cover the costs of the final stages of product development and the tooling associated with beginning manufacturing.

We’re excited to take our backers on an journey through the final steps of development and manufacturing. We take pride in keeping our backers informed, and will regularly post exclusive updates on our progress.

We believe in transparency, both procedural and financial. We want you to know everything we know. We NEED your involvement.

We can do some really cool stuff with the Arc, like create a first of its kind handlebar activated turn signal.

These add ons will take a good deal more development effort, so for starters our focus will be on our $100k funding goal to ensure we are able to take the Arc into production.

We’re incredibly excited about the potential, but it can’t happen without your support. Please support this idea by contributing to our campaign and help make it a reality.

We are a Bay Area bike light company. Our goal is to develop the most innovative safety lighting products on the market.

When we launched our first Kickstarter in 2011, we were a small group of three looking for a way to take a concept for a better bike light and make it a reality.

Now we’re just a bit older, but we’re still a small team of seven working to create the best lights out there.

We're extremely excited to team up with one of our favorite local San Francisco-based bicycle companies, PUBLIC. They design and sell urban bikes, along with accessories to make riding more enjoyable, practical, and chic.

Their European-inspired bikes ride like butter. They come in single speed and multi-speeds in all sizes. Their bikes will make you feel like a kid again, and this is every bit as important as anything else.

One of the most important things we’ve learned from our past campaigns is how including the community’s input early in the design process will allow us to create the best products... for YOU.

Kickstarter gives us a chance to bring to reality something that, frankly, we just don’t have the resources to expand into at this time. That’s why we need your help.

We’re incredibly excited about the potential, but it can’t happen without your support. Please support this idea by contributing to our campaign and help make it a reality!

Risks and challenges

Final Design/Manufacturing - While we’re very close to a final design we can take for tooling, one of the most important aspects of the Arc is it’s ability to fit most every curved fender out there. While we allocated an extended design cycle, there’s the possibility that it may take longer than expected and push our production start date.

Testing - While we’re used to designing for all environments, it’s critical with the fender that it’s able to withstand whatever rain, mud and snow their riders endure. We have planned several prototype design and testing cycles, but we will not proceed to production until we have proven the design is durable enough for our users.

Potential Turn Signals - We have prototypes for the turn signal stretch goal, but there is a lot of development work left to do for this product. Unforeseen delays could arise from difficulties in sourcing electronics components or from safety compliance testing. If we end up developing a wireless transmitting and receiving device, we would need to ensure it is fully compliant with FCC and international wireless communication regulations before shipping. This additional development and testing could lead us to delay shipping the turn signal enabled fenders.

Learn about accountability on Kickstarter

FAQ

  • We’re are still finalizing exactly how the Revolights Arc will attach, but we plan to have two installation methods:

    “Semi-Permanent” - will utilize tools like a screwdriver / drill. This installation method will be to make your Arc anti-theft. For those with an everyday bike, or who lock up outside.

    “Interchangeable” - will be much simpler to install, but also more simple to remove. This installation method will be for the seasonal rider who keeps their bike indoors.

    Last updated:
  • We are still in the process of picking the fender supplier, but we intend to use a model similar to the Velo Orange 37mm fender.

    Sample link: http://r-evo.biz/sample_fender

    So if your bike will fit that fender, you're good to go!

    Last updated:
  • Domestic shipping and handling is included in the all reward tier prices, including bikes.

    Int’l shipping and handling, please add the additional charges to your Kickstarter contribution.

    Last updated:
  • International backers will be responsible for customs and duty fees, as well as the cost of any import VATs.

    Because your reward will be considered a donation, we’re happy to include that your shipment was a “gift”. Yet we are unable to modify the cost of declared goods on packlists and invoices.

    Last updated:
  • Standover Height: S/M: 30" M/L: 32.5"
    Weight: 28 lbs
    Frame: PUBLIC hi-tensile steel frame, with fender and rack braze-ons, integrated kickstand bracket
    Handlebar: Classic swept back steel city bar
    Freewheel: 20 tooth single speed freewheel
    Brake levers: Alloy 4 finger caliper brake lever
    Tires: Kenda Kwest, 700x35c, cream color
    Rims: Alloy 32 hole, painted to match bike color, 700c, machined brake surface
    Front hub: Alloy low flange 32 hole, nutted bolt-on axle
    Rear hub: Alloy low flange 32 hole, nutted bolt-on axle
    Spokes: Chrome plated steel 14 gauge
    Chainguard: Alloy painted to match chainguard
    Kickstand: Alloy center mount
    Fenders: Steel full fenders

    For full bike specs see the following link - http://r-evo.biz/PUBLIC__V1

    Last updated:
  • Standover Height: S/M: 30" M/L: 32.5"
    Weight: 29 lbs
    Frame: PUBLIC hi-tensile steel frame, with fender and rack braze-ons, integrated kickstand bracket
    Handlebar: Class swept back allow city bar
    Freewheel: Shimano 14-34 tooth Mega Range freewheel
    Shifter: Shimano 7-speed Revoshift twist shifter
    Rear Derailleur: Shimano Acera 7-speed
    Brake levers: Alloy 4 finger caliper brake lever
    Tires: Kenda Kwest, 700x35c, 60TPI, cream color
    Rims: Alloy 32 hole, painted to match bike color, 700c, machined brake surface
    Front hub: Alloy low flange 32 hole, nutted bolt-on axle
    Rear hub: Alloy low flange 32 hole, nutted bolt-on axle
    Spokes: Stainless steel 14G
    Chainguard: Alloy chainguard
    Kickstand: Alloy center mount
    Fenders: Steel full fender

    For full bike specs see the following link - http://r-evo.biz/PUBLIC_V7

    Last updated:
  • The PUBLIC V1 and PUBLIC V7 bikes come in two sizes:

    S/M size - generally fits people between 4’10” and 5’7”

    M/L size - is better for people 5’8” and up

    The standover height for the S/M bike is about 30”, and about 32.5” on the M/L size. The seat tube measures 46cm on the S/M and 54.5cm on the M/L from center to top.

    Last updated:
  • Your PUBLIC Bike will arrive 99% assembled with the Revolights Arc already installed on the rear fender. All you need to do is unwrap the bike, complete a few simple assembly steps, and be riding in 20 minutes. With PUBLIC’s Ready to Ride option, it takes longer to unpackage the bike from the box than it does to complete the final assembly of attaching the pedals, along with turning and tightening the handle bar. Your bike will arrive using FedEx ground shipping.

    More info here: http://publicbikes.com/c/Ready-To-Ride

    Last updated:
  • If you live in the greater San Francisco Bay Area, we will contact you about picking up your fully assembled bike at a location in Oakland, California. You’ll receive a partial S&H refund as well.

    Last updated:
  • Yes! Send us an email at info@revolights.com for more details. 2014 PUBLIC bikes such as the C7i, V7i, M7i and D8i are all available, but only in specific sizes and colors.

    Last updated:

Rewards

  • You selected
    $5 reward

    36 backers

    [THANK YOU! + $5 OFF] ... Follow along and get $5 off your next purchase at Revolights.com!

    Estimated delivery:
  • You selected
    $10 reward

    34 backers

    [STICKERS + $10 OFF] ... We'll send you a sticker pack and personal thank you. You'll also get $10 off your next purchase at Revolights.com!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $35 reward

    19 backers

    [REVOLIGHTS ARC T-SHIRT & STICKERS] ... Limited edition Kickstarter T-Shirt, made in the US. Design will be announced during the campaign. Free US S&H, int'l S&H add $10.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $69 reward

    300 backers All gone!

    [REVOLIGHTS ARC EARLY BIRD SPECIAL] ... The Revolights Arc bike taillight (to retail for $89), comes ready to mount on any curved bike fender. We can only offer a limited number at this price, so act fast! Free US S&H, int'l S&H add $35.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $69 reward

    122 backers Limited (278 left of 400)

    [REVOLIGHTS ARC TWILIGHT SPECIAL] ... The Revolights Arc bike taillight (to retail for $89), comes ready to mount on any curved bike fender. We can only offer a limited number at this price, so act fast! DELIVERY SET FOR DECEMBER 2014. Free US S&H, int'l S&H add $35.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $79 reward

    104 backers

    [REVOLIGHTS ARC] ... The Revolights Arc bike taillight (set to retail for $89), comes ready to mount on any curved bike fender. Be the first to receive the Arc, and help make this technology a reality. Free US S&H, int'l S&H add $35.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $109 reward

    58 backers

    [REVOLIGHTS ARC FENDER : UNIVERSAL] ... The Revolights Arc riveted onto a black Universal Fender (rear only). Comes ready to mount on any bicycle. Free S&H to US, int'l S&H add $45.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $129 reward

    39 backers

    [REVOLIGHTS ARC FENDER : FULL METAL] ... The Revolights Arc Fender riveted onto a 700C sized, black or chrome, Full Metal Fender (includes front & rear). See FAQs for full specs. Free S&H to US, int'l S&H add $45.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $179 reward

    70 backers

    [REVOLIGHTS ARC + CITY HEADLIGHT KICKSTARTER SPECIAL] ... the Revolights Arc offered along with a Revolights City v2.0 Headlight (700c or 27" wheels only). For Revolights City compatibility, check out revolights.com. Free S&H to US, int'l S&H add $70.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    $509 reward

    1 backer

    [2014 PUBLIC V1 + REVOLIGHTS ARC FENDER] ... a single-speed PUBLIC V1 bike, red or royal blue, with the Revolights Arc pre-installed on a fender of matching color. Everything that a great city bike should be - fun, simple, lightweight, stylish and affordable. Bikes arrive 99% assembled. See FAQs for full specs. US $135 S&H included. Local pickup in Oakland, California available.

    Estimated delivery:
    Only ships to: United States
  • You selected
    $629 reward

    6 backers

    [2014 PUBLIC V7 + REVOLIGHTS ARC FENDER] ... a 7-speed PUBLIC V7 bike, black or green, with the Revolights Arc pre-installed on a fender of matching color. Lightweight, steel-frame urban bikes suitable for all cities, towns and roads. Bikes arrive 99% assembled. See FAQs for full specs. US $135 S&H included. Local pickup in Oakland, California available.

    Estimated delivery:
    Only ships to: United States

Funding period

- (54 days)