The Profile Elite Spline Drive Sprocket is a true work of art from Profile.  These USA made spline drive sprockets are designed for 19mm 48 spline cranks.  No chain ring bolt needed, these are such a nice looking sprocket, available in an array of colours and sizes...

-CNC machined from 7075 Aluminum in the USA!

-Requires no sprocket bolt. Instead, it has a hardened CrMo steel insert in that matches up to the 48 splines on the crank axle for pure, direct power transfer.

-Available for 19mm splined axles only.

-3/32″ tooth width for use with most BMX race chains.

-Supplied with 19mm splined steel insert.

Sizes: 36t, 37t, 38t, 39t, 40t, 41t, 42t, 43t, 44t, 45t

Colors: Silver, Black, Red, Blue, Gold

Weight:
36t: 140g/4.9oz
40t: 150g/5.25oz
45t 172g/6.05oz

-CNC machined from 7075 Aluminum in the USA!

-Requires no sprocket bolt. Instead, it has a hardened CrMo steel insert in that matches up to the 48 splines on the crank axle for pure, direct power transfer.

-Available for 19mm splined axles only.

-3/32″ tooth width for use with most BMX race chains.

-Supplied with 19mm splined steel insert.

Sizes: 36t, 37t, 38t, 39t, 40t, 41t, 42t, 43t, 44t, 45t

Colors: Silver, Black, Red, Blue, Gold

Weight:
36t: 140g/4.9oz
40t: 150g/5.25oz
45t 172g/6.05oz

-CNC machined from 7075 Aluminum in the USA!

-Requires no sprocket bolt. Instead, it has a hardened CrMo steel insert in that matches up to the 48 splines on the crank axle for pure, direct power transfer.

-Available for 19mm splined axles only.

-3/32″ tooth width for use with most BMX race chains.

-Supplied with 19mm splined steel insert.

Sizes: 36t, 37t, 38t, 39t, 40t, 41t, 42t, 43t, 44t, 45t

Colors: Silver, Black, Red, Blue, Gold

Weight:
36t: 140g/4.9oz
40t: 150g/5.25oz
45t 172g/6.05oz

** Please note, due to Profile's anodising process, colours can be slightly miss matched.