August 4, 2017

Profile’s Tech Tip #30: Spline Drive Differential (Freestyle)

When it comes to choosing a spline drive sprocket for your street, park, dirt, or flat rig, Profile Racing offers three options based almost solely on aesthetics.

While we’re getting into that, let us give you an additional brief history of our spline driven, freestyle gears.


Traditional 19mm Spline Drive Sprocket with proprietary 19mm Spline Insert (Included with and pressed into sprocket).

The first spline drive sprocket Profile produced was the traditional, 19mm Spline Drive Sprocket above. At this point in our history, almost 10 years ago, we only offered 19mm cranks, hence this sprocket being 19mm.

Today, it is still our standard and we keep 9 colors in stock (Black, Matte Black, Polished, Red, Blue, Gold, Purple, Green, and Aqua) in sizes 18, 20, 23, 25, 28, 30, 33, 36, 39, and 42t.


22mm Galaxy Spline Drive Sprocket with proprietary 22mm Spline Insert (Included with and pressed into sprocket).

Years later, we introduced the 22mm Profile Column Cranks. The Column’s have no sprocket bolt boss (take spline driven sprockets only), and needed an accompanying sprocket to fit that size spindle. Since the original 19mm design was all ready made, we had to produce a proprietary 22mm sprocket to accompany them.

Introducing the Profile Galaxy.

Available in Black, Matte Black, Polished, Red, Blue and Gold, and in sizes 25, 28, and 30t only.

Sabre Universal Sprocket. Your choice of universal sprocket inserts: 19mm Spline, 19mm Bolt-On, 22mm Spline, 22mm Bolt-On, or 24mm Bolt-On. Inserts sold separately.

A couple years pass, and 24mm cranks arrive into the bmx market. Considering Profile Racing does not do a 24mm crank, we thought it best to create a sprocket option to be more universal with the three standard spindle sizes available.

Introducing the Profile Sabre: Available in 25, 28, 30, and 33t, black only, and is adaptable to our 5 universal sprocket inserts:

A. 19mm Bolt-On

B. 19mm Spline Drive

C. 22mm Bolt-On

D. 22mm Spline Drive

E. 24mm Bolt-On

We hope this helps?

Contact [email protected] for any additional questions and if interested, contact your local bike shop for availability.

August 4, 2017


We are taking precautions to protect our employees and follow CDC and state guidelines. In the meantime, our machine shop is still running, we're here to assist you and we'll be shipping product to help support bike shops during this difficult time.