Co-Motion Speedster Tandem Bicycle

Welded steel Co-motion frame:

Front seat tube center to center 54.5cm
Front seat tube center to top 58cm
Front top tube center to center 58cm
Rear seat tube center to center  48cm
Rear seat tube center to top 51cm

700C wheels:

Co-motion hubs laced to Velocity Dyads
40 straight gauge spokes
9mm x 100mm/ 10mm x 145mm axle spacing
8/9/10 spd freehub
Machined sidewall for rim brakes
Rear hub threaded for roller brake

Frame has braze-ons for roller brake and disc brake in rear

Captains handlebars:
FSA  Adventure
31.8mm clamp
460mm/520mm width
125mm drop
80mm reach

Captain's stem:
85mm
30 degree rise

Stoker stem:
Co-motion adjustable ~100mm to ~220mm

Tektro Mini-V's and drp bar levers
Shimano 3x9 bar end shifters 
Shimano XT rear derailleur
Shimano Ultegra front derailleur
Sugino XD cranks 175mm/ 170mm
Chainrings 38/36/26t

Selle Royal Ariel saddles

Returns are NOT ACCEPTED on any items, unless explicitly stated in the listing, or item is not working as described.

Feel free to ask any questions before purchasing or bidding on any of our items. We inspect and test every item listed and describe it as accurately as possible. If we missed something, don’t hesitate to bring it to our attention.


We are Yellow Bike Project, a 501(c)3 non-profit located in Austin, TX. Our mission is to put bikes on the streets of Austin, educate the public about bike mechanics/maintenance, and provide a safe, accessible space for people to work on their bikes.


100% of the proceeds from your purchase helps keep our community bike shop open.


More items listed throughout the week. Some $1 starting bid items too!


Please keep in mind, in order to keep costs low, we tend to ship on Tuesdays and Fridays.


Also, in keeping with our reuse/repurpose philosophy, we ship using as much recycled material as possible, including boxes and packing material.


Every item we ship will be packed and boxed carefully, using bubble wrap, plastic wrap, packing paper, or a combination of all three. Be assured that your item will arrive safely.


If you are already in Austin, save some $$$ and come to our shop to pick up for free!


If you have any questions or comments about any item you’ve purchased, please contact us.


We value your satisfaction and will work with you to make sure you’re happy!


While we've got your attention, check out our Ebay store AustinYellowBikeProject | eBay Stores


Thanks for your support!


BL 04/2023