Protect your pants from grease and tearing with a graceful design rotating on your sprocket. It easily installs on any bike!
"Groovy fancy yet simple chainguard" - Richard Masoner, Cyclelicious
We love bikes, but we hate oil and tearing that chains and sprockets do to our pants. Current solutions to the problem are clumsy and inefficient; we'd rather not have to strap our ankles or roll up our pant legs every time we ride. So, we created Revolve Bike Discs. These chainguards easily snap onto any bike sprocket and display intriguing rotating designs as you pedal. We're excited to get these out to the cycling commuters of the world!
How do Revolve Discs work?
Revolve Bike Discs attach directly to your sprocket and form a wall between your pant leg and the greasy chain and sprocket teeth. They can snap to any sprocket design via our patent-pending attachment system. As they rotate with your sprocket, their patterns create identity and optical illusions.
Check out our simple, patent-pending attachment system!
This ball and socket design allows you to easily attach Revolve Discs and exchange them for different designs, or remove the whole system. Snap it, swap it, scrap it. Our testers have been very happy with our system's smooth and universal actuation.
Want some extra attention?
We believe that any biker can quickly and securely install their own Revolve Disc. However, we would love to meet you! Therefore, we have included several reward levels of personal installation: we will meet you and your bike in person to install sockets and one, two, or three Revolve Discs! Please send us a message ahead of time to ensure that we will be in your area.
Revolve Bike Discs are universal!
There are many types of bicycle crankshafts out there in the world. Don't worry! We have visited many bike stores and tested on crankshafts of all sorts. The socket side mounts to any small part of your sprocket, then the ball attached to the Revolve Disc will accommodate for any sprocket alignment. The ball and socket also are just the right size to allow you to place your Revolve Disc on top of your derailleur and any small, ineffective chain guard that is currently installed in your bike. If you have any concerns, send us a message! We want to make sure that Revolve Discs work for you.
Designed with the road in mind.
We know that commuting can be tough on your bike and it's components, so we've chosen materials that can handle the challenges of the road. The discs themselves will be made of polypropylene, an extremely durable plastic that offers just enough flex to avoid damage from the bumps and bruises that are inevitable for a commuter's bicycle. Meanwhile, the ball and socket components of the disc attachment system will be injection molded in high wear-resistance nylon; nylon is a more lubricious plastic that will withstand the repeated flexing that occurs whenever a user snaps the disc on or off their bike. The attachment system will also feature an industrial strength, weatherproof 3M adhesive. The combination of each component results in a highly durable product; we expect them to last through several years of daily riding. Our prototypes have already made it through several months!
We've created many revolving designs.
It's okay to pick favorites!
To receive a Revolve Disc, pick your reward level. After we reach our goal, we'll make it easy for you to pick your favorite designs.
It's Time to Kick it up a Notch.
Exclusive design for early backers!
Be one of our first supporters! We're offering a limited run of 100 discs printed with the Optical Ring design in Kickstarter green.
Bike to Fight for the End of AIDS.
We want to support our friend, Leila Moinpour, and her team as they bike across the country for FaceAIDS. She is raising money for FaceAIDS to donate to Partners in Health, which brings AIDS-fighting medicine to needy people around the world, including the countries of Haiti, Rwanda, Mexico, and the USA. Once Leila raises this money, she will raise awareness with her pledge to bike from San Francisco to Boston over 63 days this summer.
To support this AIDS-fighting bike ride, we have designed the "Ribbons of Change" Revolve Bike Disc. Now you can support fighting AIDS not just with your monetary contribution, but daily as you commute with your bike and the Ribbons of Change Revolve Disc. Become the FaceAIDS ambassador to Leila by riding with this Revolve Disc!
Are you a DIY biker?
Early backers have the opportunity to create their own custom disc designs. Choose the custom design reward level, send your pattern to us, and we'll get it on a disc.
More Perks for You
Nearly every backer will receive a snazzy Revolve Sticker and a sleek Revolve T-shirt!
You have the chance to get your name or your company's name out to nearly every backer! Simply choose a reward of $250 or more, and you will be on the back of the Revolve T-shirt. The greater your donation, the greater the size and higher the placement of your name among the other sponsors.
We need your help...
Help us share Revolve Bike Discs with the world.
We've built prototypes and have begun testing. Your backing will be used to fund our initial tooling costs and first production run. The breakdown of our costs is below:
47% // Injection Mold Construction
32% // Production Run Materials, Factory Time, Assembly, and Shipping
11% // Peripheral Costs (t-shirts, stickers, etc.)
10% // Offset of Kickstarter & Amazon Fees
A lot is left to be done. We have talked with manufacturers and are ready to invest in tooling as soon as we are funded. All we need is your support.
June - Final engineering validation & order tooling
July & August - Hard tooling, production sample testing, and tool modifications
August - Final production run
September - Package and ship Revolve Bike Discs to you!
Risks and challenges Learn about accountability on Kickstarter
We have received quotes from manufacturers for tooling and materials. We are developing relationships with our suppliers, and are working on finalizing our decisions. We are working with an onshore manufacturer, and we are very pleased with the ease of communication with them so far. However, we have a variety of backup vendors who are ready to respond to our needs if we have supply chain issues.
We anticipate that we will face the steepest learning curve as we begin to mass produce Revolve Bike Discs, and as we learn, we promise to involve our backers in decisions such as types of Revolve Disc designs and the snap fit of our injection molded ball & socket.
We have a wonderful group of advisors, supporters, and ralliers. You have helped us so much to get to this point, and we are looking forward to celebrating with you as we make this real! Special thanks to: Claire and Roger Chan, Kim and David Skerda, Christine Yost, Zach Weiner, Leko Murphy, Bill Burnett of Stanford Design, The Stanford Product Realization Lab, Marcus Albonico & Kevin Ting of Radian, Shilpa Sarkar of Jump Associates, Bill Flemming of the Trek Store of Anchorage, Sheta Chatterjee, Kathy Spriggs, Chris Seewald, and all of our friends and family.
Have a question? If the info above doesn't help, you can ask the project creator directly.
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Pledge $2 or moreYou selected
Thanks for your support! Stay connected through exclusive updates offered to Kickstarter backers only.Estimated delivery:
Pledge $10 or moreYou selected
Thank you for your support! Receive a Revolve Sticker perfect for display on your bike's downtube, and also get exclusive backer updates!Estimated delivery:Add $5 USD to ship outside the US
Pledge $20 or moreYou selected
Thank you for your support! Receive a sleek Revolve T-shirt and a Revolve Sticker. The ultimate supporter package. Of course you also get backer updates!Estimated delivery:Add $10 USD to ship outside the US
Pledge $30 or moreYou selected
38 backers Limited (62 left of 100)
Kickstarter Early Bird - Receive a limited edition Revolve Disc printed with the Optical Ring design in Kickstarter green. Also includes a Revolve Sticker.Estimated delivery:Add $10 USD to ship outside the US
Pledge $40 or moreYou selected
Simplicity - Receive one Revolve Disc, printed with your favorite design. Also get a Revolve T-shirt and a Revolve Sticker. You will be rolling in style in no time!Estimated delivery:Add $10 USD to ship outside the US
Pledge $60 or moreYou selected
Ribbons of Change - Receive a Revolve Disc printed with our Red Ribbon design, and we will donate $15 of your contribution to the bike ride to fight AIDS this summer (faceaids.org). This package also includes a Revolve T-shirt, a Revolve Sticker, and a wave of charitable butterfly feelings.Estimated delivery:Add $10 USD to ship outside the US
Pledge $80 or moreYou selected
Double Down - Pick any two disc designs for installation on one bike. This pack includes one set of sprocket-side mounts and two sets of disc-side mounts, so you can swap the discs at your pleasing! Includes a Revolve T-shirt and a Revolve Sticker.Estimated delivery:Add $10 USD to ship outside the US
Pledge $120 or moreYou selected
Menage a Trois - Pick any three disc designs for installation on one bike. This pack will include one set of sprocket-side mounts, and three sets of disc-side mounts. With a Revolve T-shirt and Revolve Sticker, you have an awesome package!Estimated delivery:Add $10 USD to ship outside the US
Pledge $120 or moreYou selected
0 backers Limited (50 left of 50)
Personalized Creator Pack - Want a unique design, but unsure where to begin? Just send us a photo of your bike, and you'll receive a unique Revolve Disc with a unique bike-matching design. Receive a Revolve Disc with a design customized by the creators, a Revolve T-shirt and a Revolve Sticker.Estimated delivery:Add $10 USD to ship outside the US
Pledge $120 or moreYou selected
1 backer Limited (49 left of 50)
DIY Creator Pack - Receive a Revolve Disc with your own design. We'll send you our Revolve Disc template, you'll send us your design, and then you'll get your own custom disc! Of course you'll get a Revolve T-shirt, Revolve Sticker, plus a design completely unique to your bike!Estimated delivery:Add $10 USD to ship outside the US
Pledge $130 or moreYou selected
Personal Installation - Love Revolve Discs and want to meet the creators? We will hand-deliver your choice of Revolve Disc, then install it with you on your bike. Also included is a Revolve T-shirt, a Revolve Sticker, and lots of personalized attention. *Please send us a message to see if we'll be in your area before selecting this reward.Estimated delivery:Ships within the US only
Pledge $150 or moreYou selected
2 backers Limited (18 left of 20)
Want it Now - Become part of our BETA test group! Be part of the exclusive group to receive your Revolve Disc months before other backers! We'll make a custom Revolve Disc that specially matches your bike: you design it or we can make it for you. After testing it, you'll have the opportunity to provide us feedback and help direct the path of the project. Beyond access to the backstage, receive a Revolve T-shirt and a Revolve sticker.Estimated delivery:Ships within the US only
Pledge $170 or moreYou selected
Personal Installation & Double Down - We will hand deliver two of your favorite Revolve Discs and install them with you on your bike! Includes one set of sockets for your bike and two sets of balls so you can swap the Revolve Discs whenever you like. Also get a Revolve T-shirt and a Revolve Sticker. *Please send us a message to see if we'll be in your area before selecting this reward.Estimated delivery:Ships within the US only
Pledge $210 or moreYou selected
Personal Installation & Menage a Trois - We'll help you install the sockets for three of your favorite Revolve Discs! Includes three discs of your choice, one set of sockets, and three sets of balls. Also get a Revolve T-shirt and a Revolve Sticker. *Please send us a message to see if we'll be in your area before selecting this reward.Estimated delivery:
Pledge $250 or moreYou selected
Become a Super Revolve Sponsor - Your own or your company's name will be printed on the back of our T-shirts. The larger your contribution, the larger your name, scaling in relation to other backers. People all across the world will see your company's name! Also receive a Revolve Disc of your choice, a Revolve T-shirt, and a Revolve Sticker.Estimated delivery:Ships within the US only
Pledge $300 or moreYou selected
3 backers Limited (17 left of 20)
Complete Bike Customization - Receive a Revolve Disc of your choice, plus we'll personalize your bike with custom designed vinyl graphics. The combination of disc and vinyl will make your bike truly unique. If you're in the SF Bay Area, we'll even come install everything for you! Also includes a Revolve T-shirt and a Revolve Sticker.Estimated delivery:Add $10 USD to ship outside the US
Pledge $1,000 or moreYou selected
3 backers Limited (12 left of 15)
Meet the Makers - Come show off your newly Revolve'd bike as we take you on bike tour of our proving grounds: the streets of Palo Alto, Stanford Campus or the majestic Skyline Boulevard. Afterwards, we'll take you out to dinner! Includes your three favorite Revolve Discs, three sets of balls, and one set of sockets. And sure, we guess you can have a Revolve T-shirt and a Revolve Sticker too. *Doesn't include transportation to the Bay Area.Estimated delivery:
- (21 days)