- C-Yaa Racing (1)
- Cal Cruiser (0)
- Cal-Lite (0)
- Calderoni (1)
- California Custom (6)
- California Freestyle Designs (0)
- California Racing Designs (0)
- CaloiCross (62)
- Calypso (2)
- CAM Racing Products (0)
- Campagnolo (0)
- Cane Creek (0)
- Cannondale (30)
- Capitol (1)
- Cardboard Lords (12)
- Cardinal (2)
- Carraro Cicli S.p.A. (1)
- Carsington (1)
- Carver (4)
- CCH (9)
- CCM (8)
- Centurion (15)
- Century (3)
- Cha Bike (1)
- Challenger Racing (5)
- Champion (94)
- Chase Bicycles (19)
- Cheeta (42)
- Cheetah American Susen Inc. (1)
- Cignal (1)
- Cinelli (11)
- Cinzia (1)
- Citicat (2)
- Citizen Bikes (0)
- Clayborn Bicycles (23)
- Claypas Bykes (1)
- Coalition (0)
- Coast Wheels (1)
- Colony (77)
- Columbia (62)
- Columbus (1)
- Commencal (2)
- Commercial brand (2)
- Commonground Bikes (1)
- Competition Developments (0)
- Competitor (2)
- Concord (23)
- Condor (1)
- Constrictor BMX (0)
- Constructor BMX (0)
- Control Tech (4)
- Cook Bros. Racing (179)
- Corex (2)
- Corsaro (1)
- Covert (1)
- Crank Bros (0)
- Credence (4)
- Crisp (22)
- Crocodile (1)
- Cromo Burner (1)
- Crossrider (29)
- Crown Bike (1)
- Crupi (39)
- Crusty Demons (1)
- Csepel (17)
- CTS (4)
- Cult BMX (54)
- Curtis (40)
- Custom Built (33)
- CW Racing (563)
- CYC (52)
- Cycle Craft (148)
- Cycle Pro (189)
- Cyclone (1)
- Cyclops (4)
- CalioCross from Brasil, 1983
- CCH BMX Products Sticker Sheet
- Chris Noles Amazing Bike Collection
- Chromoly aka "chromium-molybdenum steel"
- Comparison of Frame Materials
- Cycle Craft Company Info
