Best Selling Products

Theory Crank Arm Pinch Bolts Sold as a pair  

The Theory Data grips use a classic and comfortable mushroom style pattern. 150mm in length to work with today's wider bars. 

The Theory Downtown 2 Bolt Railed Seatpost is an aluminum post that uses a two bolt design. Nothing overly fancy, just a workhorse looking to hold ...

Theory Elevate 29" Forks Someone had to eventually bring another decent option to the 29" wheel game, and Theory did just that. The Elevate Fork is...

Theory Elevate 29" Forks (With Disc Mount) Someone had to eventually bring another decent option to the 29" wheel game, and Theory did just that. T...

Theory Fork Compression Bolt M24

Theory Headset Spacer Kit Aluminum Kit includes 3 spacers: (1)2mm , (1)5mm, and (1)10mm Fits 1-1/8" steer tubes

6" x 2"

Theory Integrated Headset Sealed cartridge bearings 10mm dust cover

The Theory Legacy NW Sprocket is a "narrow wide" sprocket design meaning it is meant to be used with multi speed bikes. The "narrow wide" design, o...

Theory Legacy Sprocket  6061 Aluminum 19mm and 22mm adapters included 1/8" 

The Theory Median Pedals are a combination of thermoplastic bodies with removable steel pins. The removable pins are perfect for utilizing one side...

The Theory Method Tires are a great addition to the big BMX game with its refined design that offers a fast and grippy tire that wont break the bank.

The Theory Method Tires are a great addition to the big BMX game with its refined design that offers a fast and grippy tire that wont break the bank.

The Theory Mid Bottom Bracket comes with everything you need to get your crankset installed.  The kit includes two sealed cartridge bearings, tube ...

How are we going to see that work if your slippin' off the pegs? Don't worry Theory has you covered with pre-cut hassle free installation grip for ...

The Theory Pivotal Post is your basic pivotal post. Functions as it should, and comes in at a price that won't make you cry. Works best with tradit...

Direct replacement for the Theory Predict Cassette wheel.

Versatile tread pattern designed to work well on all terrain. 65psi max

The Theory Quickie QR  Seat Clamp lets you add some style and convenience with one swipe of the card. Alloy an anodized colors... what else do you ...

The Theory Rattlesnake Freewheel is not your basic freewheel, it comes in fancy colors! Not only does the Rattlesnake look sick, but it also sounds...

30mm wide Sold in pairs