Engine YBR or GS

[tommy.]

I have a choice of OHC engines for my Retro New and Like Design bikes I am going to import.

Any input/opinions/information to help me pick would be appreciated.

YBR engine (yamaha clone)
or
GS engine (suzuki clone)

The first bikes are for the 125cc racing class and next will be 250cc class.

[Weldangrind]

Tough choice; both are terrific designs. Do you have any links we could look at?

[tommy.]

Tough choice; both are terrific designs. Do you have any links we could look at?

Sorry Weldangrind, no links available from the companies.

I am going with the YBR 125cc engine clone first because the parts are interchangeable with the 2015 Yamaha TT-R125LE engine.

Now just waiting on EPA reply/approval.

I should do NHTS/DOT approval, since I know how to do it, but going to kick the can down the road on NHTS/DOT approval. Don't need it at this time and if I do, it's very easy to get.

[sthasunil929]

I need for 125 cc.