Retrofit – Internal Electronic Routing

Do you have a carbon frame (any make or model) that you simply love to use, fits you perfectly and deserves to be in your regular rotation of bikes?  Are you also feeling the need to upgrade it to a more modern electronic drivetrain?  How can one combine the convenience of an electronic drivetrain plus keep their classic steed looking stealth and tidy without wires on the outside?  If your frame was designed and engineered during the pre-electronic era when mechanical external cable drivetrain systems were the standard, tape and ties were the answer.

CALFEE DESIGN have an elegant and professional solution to make your carbon frame updated to accept electronic wiring internally and maintain that ultra-clean look you desire.  Our decades of expertise in the world of carbon allow us to modify your frame without sacrificing the strength and structural integrity.  Our technicians professionally drill and reinforce three wiring access ports (downtube, seat tube and chainstay) on your frame, plus we can eliminate external drivetrain cable stops to really tidy up the appearance.  Now your carbon frame is plug-and-play ready with the electronic drivetrain of your choice.  No need to buy a new frame with our retrofit as an upgrade option for your carbon frame.


  • SHIMANO DI2, CAMPAGNOLO EPS V3, & FSA WE electronic systems $500 plus paint restoration cost
  • CAMPAGNOLO EPS V1 & V2 systemS $750 (send power unit and wiring harnesses) plus paint restoration cost
  • CALFEE tandems $1000 plus paint restoration cost

If you would like us to retrofit your carbon frame, please complete the Retrofit – Internal Electronic Routing Order Form and review our protocol for Sending Your Frame for Repair.

For more information, please contact:



    Shop Information

    Shop Name

    Shop Address

    Shop City

    Shop State

    Shop Zip

    Shop Phone

    Shop Email

    Customer Information

    Customer name (required)

    Customer Address (required)

    Customer City (required)

    Customer State (required)

    Customer Zip Code(required)

    Customer Phone (required)

    Customer Email (required)

    Ordering Information

    Frame Brand (required)

    Frame Model (required)

    Last 4 of Serial# (required)

    Size (required)

    Who will handle approval on work order? (required)

    If shop, who is the shop contact?

    Are you a part of our carbon repair dealer program?

    If not, are you interested?

    Where to ship the frame back to?


    Retrofit Options

    Please select from the following retrofit option and submit required images for paint estimates.*

    Di2 Retrofit for current Shimano systems, starts at $500 + the cost of paint restorationEPS retrofit using EPS internal battery, starts at $750 + the cost of paint restoration (V2 Powerunit must be provided)Calfee Tandem Di2 Retrofit, starts at $1,000 + the cost of paint restorationSuperClean BarStem: front-end electronic integration, $575 + the cost of parts and paint (call 800-965-2171 for details)

    *Paint estimates can be provided by sending detailed images of your frame to the carbon repair department. Please email

    Review & Send

    Calfee Design requires a 60% deposit before performing any work. The balance will be charged upon completion. We accept Visa, Mastercard, check or PayPal to Any item left with Calfee Design for more than 60 days without action from the customer will be considered abandoned and become property of Calfee Design to dispose of as it pleases. Not all frames will be compatible with a standard retrofit and may require additional carbon repair work. Upon receiving your frame, Calfee will evaluate the internal structure of your frame for any problems that may require additional work or solutions. Prices do not include return S/H & insurance (FedEx will declare shipping rate based on zip code). CA residents add tax on paint and new parts. The declared value of a frame will be set at $1600 unless otherwise indicated by shop/customer, signature required for all deliveries for anything valued over $500.

    Please strip your frame of ALL parts before shipping. Remember, we will contact you with an order number that MUST be written on the outside of your box prior to shipping.

    Your name (required)

    Your Email (required)

    Date you are shipping (eg. 2015-07-15)

    *By checking the box below and clicking "send" you agree to all terms listed on this form.

    *By checking the box below and clicking "send" you agree to all terms listed on this form.

    Craig Calfee designed and manufactured his first carbon frame in 1987.