✅✅✅ The history and variants of the GT Power Series 3pc alloy cranks made by SR

The history and variants of the iconic GT Power Series 3 pc alloy cranks made by SR from 1986 through late 1989. GT offered 4 different lengths of these cranks. 150mm, 170mm, 175mm and 180mm. They were all made from the same forged 7050 aluminum crank arm. 170, 175 and 180mm the only differences were the location of the drilled and tapped peddle spindle location. 150mm were cut down (shortened) and reshaped arms made from the longer forged version. 175 were most common and found on the high end freestyle bikes - only factory equipped on the team models. 170mm and 180mm were more common to the racing bikes and only factory equipped on the team models. 150mm were found on the GT Ricochet.

For replacement bottom brackets or sealed bearings see the options below.

Tange SEALED BEARING American Bottom Bracket for One Piece Bicycle Crank - 24T - CHROME (BB220SB) - Porkchop BMX
https://www.porkchopbmx.com/tange-sea...

Or

Tioga SEALED BEARING American Bottom Bracket for One Piece Bicycle Crank - 24T - CHROME - Porkchop BMX
https://www.porkchopbmx.com/tioga-sea...

For damaged drive pin screw replacement see the below.
https://bmxmuseum.com/forsale/748301
Replacement Drive pin screw for the 1986-1990 GT Power Series cranks. There are not designed for the modern GT power series alloy cranks made 2013 to present day.

How to install the GT power series alloy 3pc cranks made by SR (1986-1990). Video link below.

   • How to install GT Power Series 3 piece cra...  

The differences between the old school GT power series alloy cranks made by SR 1986-1990 and the modern reproduction GT power series alloy cranks. Video link below.

GT Original Power Series Cranks VS Reproduction Versions
   • GT Original Power Series Cranks VS Reprodu...