Mod 1 5mm bore pinions

[MetalMan]

Originally Posted by _paralyzed_

depends on the tooth count. I'd check http://www.sdp-si.com/ for 8mm pinions

SDP-SI does have them, but if you're planning on running a steel spur think twice about your decision, whether it be the motor or the spur gear.

So if you run a plastic spur, then by all means pick SDP-SI! I have an 18t steel one from them, and a 16t stainless steel gear. The quality is excellent.

[KaztheMinotaur]

Yeah, I've been looking at sdp-si.com.