FIXED GEAR ARCHIVE

Profile Spline Drive Sprocket

Description:

The Profile Spline Drive sprocket is manufactured from 7075 Aluminum in the USA. This sprocket requires no sprocket bolt, instead it has a hardened CrMo steel insert in that matches up to the 48 splines in your Profile BB spindle.

So far, we have 23, 25, 28, 30, 36, 39, and 42 tooth versions available. The teeth are 1/8″, and most of our anodized colors will be available.

We rolled out the Chrome Moly Gun Drilled Hollow bottom bracket spindles about halfway through last year to great response. If people liked CrMo GDH, then they’re probably going to love Titanium GDH spindles. Also shown is our entry into the spline drive sprocket sweepstakes. Made from 7075 with a hardened CrMo insert, they are strong as well as light and enable you to run cranks with no sprocket bolt bosses. This prototype is a 25t, but expect us to have all the popular sizes when they hit retail.

Details:

Release Date:

  • November 2009

Manufacturer:

  • Profile Racing

MSRP: $60.99-$83.99

Color(s):

  • Black
  • Blue
  • Gold
  • Red
  • Orange
  • Green
  • Teal
  • Clear Anodized (Silver)
  • Matte Black
  • Dusted Purple
  • Coffee
  • Blue Bench Blue

Spindle Size(s):

  • 19mm

Tooth Count(s):

  • 23t
  • 25t
  • 28t
  • 30t
  • 33t
  • 36t
  • 39t
  • 42t

Gallery:

Promo Content:

Specifications:

PROFILE SPLINE DRIVE SPROCKET-19MM

  • 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.
  • 1/8″ tooth width for use with most freestyle/street & single speed chains.
  • Supplied with 19mm splined steel insert.
  • Sizes:
  • 23t, 25t, 28t, 30t, 33t, 36t, 39t & 42t with 1/8″ tooth width.
  • 18t & 20t with 3/32″ tooth width.
  • Colors: Silver, Black, Red, Blue, Gold, Green, Purple, Matte Black(25t & 28t Only)

Weight:

  • 25t: 76g/2.65oz
  • 28t: 87g/3.05oz
  • 30t: 93g/3.25oz
  • NOTE: Spline drive sprockets are not compatible with 2-piece cranks for Right Side Drive (not enough room for splines). Spline drive sprockets are compatible on Left Side Drive 2-piece cranks though.

See Also:

  • Profile Spline Drive Spider
  • Profile Racing