85. 86 ATC250R cylinders same as 86 4 trax?

[ERBE]

Are teh 85, 86 cylinders the same as the 86 4 trax? I know the 87 the rod changed.

[Aughtx]

The 85-86 ATC cylinders are the same as the TRX 86 cylinder. The 85-86 ATC cylinders and 86-89 TRX cylinders can be used with any year bottom end. The only difference in the 85-86 cylinders and the 87-89 cylinders is that the 85-86 dont have an intake bridge.

[Scott-300ex]

Originally posted by Aughtx
The 85-86 ATC cylinders are the same as the TRX 86 cylinder. The 85-86 ATC cylinders and 86-89 TRX cylinders can be used with any year bottom end. The only difference in the 85-86 cylinders and the 87-89 cylinders is that the 85-86 dont have an intake bridge.

Thats correct.