+BMX Parts
- NEW ITEMS!
- The DEAL ZONE
- Just Restocked!
- NOS Goodies
- Bar Ends
- Bearings
- Bottom Brackets +
- Brakes +
- Chains +
- Chain Tensioners
- Cranks +
- Forks +
- Freewheels & Drivers +
- Grips +
- Handlebars +
- Headsets +
- Hubs +
- Number Plates & Numbers +
- Pads
- Parts Kits
- Pedals +
- Pegs
- Rims +
- Seats +
- Seatposts +
- Seatpost Clamps
- Spokes & Accessories +
- Sprockets +
- Stems +
- Tires and Tubes +
- Wheels +
- *Repair Necessities
+BMX Riding Gear
Theory
Theory Peg Tape
$ 9.99
Slippin' off those pegs while you're livin' the wheelie bike life? Theory Parts has the solution with pre-cut squares of peg tape that will fit your pegs to add the...
Theory Rattlesnake 17T BMX Freewheel - 108 Engagement Points - 3/32" - Blue
$ 59.99
With 9 pawls and 108 points of engagement, the Rattlesnake freewheel has super quick engagement and a super loud sound. This freewheel has 3/32" teeth, so it works with 3/32"...
26x2.35 Theory Method BMX Tire - Black w/ Red Splatter
$ 37.99
Fast and grippy, the Theory Method tire has a refined design that delivers tons of grip without breaking the bank. Size: 26 x 2.35 (ISO 559mm)Color: Black w/ Red Splatter Note:...
29" Theory Rim Strips - Pair - 30mm wide
$ 6.99
This is a package of 2 Theory rim strips. These fit 26" rims and are 30mm wide.
20" Theory Rim Strips - Pair - 30mm wide
$ 6.99
This is a package of 2 Theory rim strips. These fit 20" rims and are 30mm wide.
19mm Theory Euro BMX Bottom Bracket Set - Blue
$ 39.99
This Theory Euro bottom bracket set is made for 19mm crank spindles (available separately) and threaded Euro bottom bracket frames. It comes with 4 bearings, aluminum cups, a tube spacer,...
Theory 28t Verify BMX Sprocket / Chainwheel - Black
$ 19.99
The Theory Verify Sprocket is simple and effective, yet wallet-friendly. Constructed of 6061 aluminum sprocket, it has a 15/16" bore and includes adapters for 19mm and 22mm spindles. This sprocket is compatible...
Theory 28t Verify BMX Sprocket / Chainwheel - Red
$ 19.99
The Theory Verify Sprocket is simple and effective, yet wallet-friendly. Constructed of 6061 aluminum sprocket, it has a 15/16" bore and includes adapters for 19mm and 22mm spindles. This sprocket is compatible...
Theory 25t Verify BMX Sprocket / Chainwheel - Gold
$ 19.99
The Theory Verify Sprocket is simple and effective, yet wallet-friendly. Constructed of 6061 aluminum sprocket, it has a 15/16" bore and includes adapters for 19mm and 22mm spindles. This sprocket is compatible...
Theory 25t Verify BMX Sprocket / Chainwheel - Black
$ 19.99
– Sold OutThe Theory Verify Sprocket is simple and effective, yet wallet-friendly. Constructed of 6061 aluminum sprocket, it has a 15/16" bore and includes adapters for 19mm and 22mm spindles. This sprocket is compatible...
Theory American to Mid Bottom Bracket Cup Set - Aluminum - Red
$ 14.99
The Theory Bottom Bracket Cups allow you to use a mid size sealed bearing bottom bracket in an American size frame. They are made out of anodized 7000-series aluminum. These are made to...
20x2.40 Theory Proven BMX Tire - Purple w/ Black Sidewall
$ 30.99
The Theory Proven tire is a great all around tire with a tread pattern that has excellent grip on street, ramps, concrete, and everything in between. Size: 20 x 2.40 (ISO...
Theory Data Grips w/ Bar Ends - Flangeless - White
$ 9.99
This BMX grip from Theory Parts is a soft, yet durable, mushroom-style grip with color-matched bar ends. Style: FlangelessLength: 160mmColor: White
Theory Data Grips w/ Bar Ends - Flanged - White
$ 9.99
This BMX grip from Theory Parts is a soft, yet durable, mushroom-style grip with color-matched bar ends. Style: FlangedLength: 150mmColor: White
Theory Data Grips w/ Bar Ends - Flanged - Red
$ 9.99
This BMX grip from Theory Parts is a soft, yet durable, mushroom-style grip with color-matched bar ends. Style: FlangedLength: 150mmColor: Red
Theory 3/8" x 26t Aluminum BMX Axle Nuts - Set of 2 - Green
$ 13.99
Theory BMX aluminum axle nuts are flanged and designed for use with 3/8" 26tpi axles. A 17mm wrench is required to install (not included). Sold as a pair. Thread Pitch: 3/8" x...
Theory Rattlesnake 17T BMX Freewheel - 108 Engagement Points - 3/32" - Purple
$ 59.99
With 9 pawls and 108 points of engagement, the Rattlesnake freewheel has super quick engagement and a super loud sound. This freewheel has 3/32" teeth, so it works with 3/32"...
20" Theory Predict BMX Wheelset - 9t RHD - Sealed - Pair - Purple
$ 179.99
Discover the incredible versatility of the 20" Theory Predict BMX Wheelset: 36H front and rear wheels -- both paired with wide 36mm double wall rims and low flanged hubs. The...
29x2.5 Theory Method BMX Tire - Black w/ Red Splatter
$ 43.99
Fast and grippy, the Theory Method tire has a refined design that delivers tons of grip without breaking the bank. Size: 29 x 2.5 (ISO 622mm)Color: Black w/ Red Splatter...
18" Theory Rim Strips - Pair - 30mm wide
$ 6.99
This is a package of 2 Theory rim strips. These fit 18" rims and are 30mm wide.