About

TandemBikePart.com sells tandem-specific bicycle components — timing chains, eccentric bottom brackets, stoker-side parts, wheels, and brakes — for builders and riders who need drivetrain parts a solo bike shop does not stock.

What TandemBikePart.com does

Tandem drivetrain parts

Timing chains, eccentric bottom brackets, sprockets, and related drivetrain pieces that exist because two riders share one bike. These are not converted solo parts with a longer cable.

Stoker-side and cockpit parts

Handlebars, seats, and stoker-specific pieces for the rear rider, plus wheels and brakes specified for tandem duty.

Accessories that actually fit a tandem

Grips, couplers, bottles, and bags in the accessory group, kept secondary to the drivetrain parts the bike cannot roll without.

What makes TandemBikePart.com different

Tandem geometry, not a solo catalog with “tandem” in the title

Timing chains and eccentric BBs are the reason this shop exists. If a part is here, it is because a tandem uses it.

Stoker is a real position

Rear-rider fitment is specified as stoker, not “the other seat.” Order the position you are building for.

Consultation for odd builds

There is a bespoke consultation path for custom builds that do not match a stock SKU. Use it instead of guessing a chain or BB.

A phone that answers

844-284-5842, Monday–Friday, 8:00 AM–5:00 PM Central.

Who uses TandemBikePart.com

  • Tandem owners replacing a timing chain or eccentric bottom bracket
  • Builders specifying stoker bars, saddles, wheels, or brakes
  • Riders who need tandem drivetrain parts a general bike shop does not keep
  • Anyone whose build does not match a stock SKU and needs a consultation before ordering

How TandemBikePart.com works

Identify the drivetrain or stoker part by what is on the bike, order on the site, or call 844-284-5842. We ship from Carrollton, Texas, usually within 1–2 business days. Timing chains and eccentric BBs are not interchangeable with solo-bike parts — confirm the tandem spec before you check out.

Key facts

Company Name TandemBikePart.com
Type Online retailer of tandem bicycle drivetrain and stoker-side components
Headquarters 1015 N I35E, Suite 218, Carrollton, TX 75006
Website https://tandembikepart.com
Core Offering Timing chains, eccentric bottom brackets, sprockets, wheels, brakes, stoker cockpit parts
Phone 844-284-5842
Hours Monday–Friday, 8:00 AM–5:00 PM Central
Shipping Most orders ship in 1–2 business days from Carrollton, TX
Communication Website checkout, phone, consultation form

Frequently asked questions

Will a regular bike chain work as a timing chain?

No. A tandem timing chain is a specific drivetrain part. Order the tandem timing chain that matches the bike, not a solo replacement chain.

What is an eccentric bottom bracket for?

It sets chain tension on many tandems. It is not a standard solo BB. Match the eccentric standard on your frame.

Do you have parts for the rear rider?

Yes. Stoker-specific bars, saddles, and related cockpit parts are in the catalog.

What if my build is not a stock SKU?

Use the bespoke consultation page or call 844-284-5842 before you order a guess.

What number do I call?

844-284-5842, Monday–Friday, 8:00 AM–5:00 PM Central.