33t 4130 HT V1 Spline Drive Sprocket

$29.99 On Sale

Designed to be a reliable, thin, and affordable high-quality sprocket that's ready to shred anytime.


- 4.5mm thick 4130 Heatreated Chromoly Steel
- Broached for 48 spline 3/4" spindle cranks
- 3/32" wide teeth can be used with either 3/32” or 1/8” chains
- Available in Bolt Drive


- 25T, 28T, 30T, or 33T


- Black or Raw


- 25t: 3.0oz
- 28t: 3.9oz
- 30t: 4.5oz


We chose to use 4130 chromoly steel because it is a less expensive material when compared to 7075 aluminum. Since it’s such a stronger material it’s possible to create a minimalist look. The triangle shaped pockets are laser cut to remove material that is not needed leaving only the material necessary to form a high strength to weight structure. Then the centerhole and teeth are CNC machined for concentricy. The splines are then broached directly into the sprocket. And finally the sprocket is heatreated.

The 4130 HT V2 sprocket has went through 3 prototypes of finite element computer analysis, real world testing, and laboratory testing.

The teeth have been modeled after the tooth shape used for industrial machinery. In industrial situations this engineered tooth shape keeps machinery running quietly and smoothly at very high RPM's. For BMX it makes it the smoothest running sprocket. Also the teeth are made tall to prevent the chain from derailing.

*Some items can take up to 1-2 weeks to arrive due to availability in stock.