Our Classic bottom bracket uses our heat-treated stainless steel spindle. This bottom bracket is intended for applications demanding maximum durability and minimum flex. It is offered with our Standard PWX03 bearing. The bottom bracket is offered with a 63/68, 68/73 and 100 mm aluminum shell. For those looking for a low drag bearing option we offer our PWN93 Carbonyte bearing upgrade.
Our Pro bottom bracket uses our proprietary titanium spindle. This bottom bracket is intended for applications demanding light weight, minimum flex, and maximum durability. It is offered standard with our PWN93 low drag Carbonyte bearing.
Our Pro bottom bracket uses our proprietary titanium spindle. This bottom bracket is intended for applications demanding light weight, minimum flex, and maximum durability. It is offered standard with our PWN93 low drag Carbonyte bearing.
| SPECIFICATIONS | |
|---|---|
| Shell material | 6061 Aluminum |
| Spindle material | Stainless steel (heat-treated) (Classic), Titanium (Pro) |
| Bearing availability | 6903 (Standard), 6903 (Carbonyte) |
| Classic bottom bracket weights | 103 mm (196 grams), 104 mm (198 grams), 108 mm (208 grams), 111 mm (213 grams), 113 mm (215 grams), 116 mm (222 grams), 119 mm (226 grams), 123 mm (234 grams), 125 mm (237 grams), 127.5 mm (241 grams), 130 mm (247 grams), 135 mm (257 grams), 145 mm (269 grams) |
|
Pro bottom bracket weights |
108 mm (140 grams), 111 mm (142 grams), 113 mm (145 grams), 116 mm (146 grams), 119 mm (149 grams) |
| Rider and bike weight limit | 280 lbs / 127 kgs (Classic), 190 lbs / 86 kgs (Pro) |
| Materials | All of our manufactured items are machined out of US-produced materials. |
Please note: If you need your bottom bracket spindle to be offset please include this information in the notes section when checking out, thank you.
INSTRUCTIONS
Square Taper Bottom Bracket Installation (pdf)
T47 Square Taper Bottom Bracket Installation (pdf)