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Title: HIRO Question
Post by: iyaoyas on March 06, 2011, 07:10:05 PM

Can anyone tell me if the 125cc HIRO engine has a 5 or 6 speed gearbox?

Thanks-

Title: HIRO Question
Post by: rob w on March 08, 2011, 01:18:08 PM

They are a SIX speed transmission.

I destroyed the transmission (half the gears were in multiple pieces) on my Hiro Penton. Under what I thought to be normal useage.

Still...when I put my NOS Hiro engine in a Six-Day frame, I definetly plan to build it for riding/racing.

Bawb

Title: HIRO Question
Post by: sixdazed on March 08, 2011, 04:29:54 PM

Hey Bawb,How did the Hiro compare to say,a hot rodded "b" motor or even an early hon cr125???Enquiring minds must know.Hope all is well on your end.Later,
Ric

ric emmal

Title: HIRO Question
Post by: iyaoyas on March 08, 2011, 11:24:01 PM

Thanks Bob!

Title: HIRO Question
Post by: rob w on March 08, 2011, 11:31:43 PM

Ric, I raced it in 1975, among all the tricked out CR's, RM's, etc.
I never felt there was another bike on the track, any faster, or better than that Penton I was on.
I've never ridden a modified Sachs engine, but it was considerably faster than a stock B engine.

Title: HIRO Question
Post by: sixdazed on March 10, 2011, 12:06:46 PM

Thanks Bawb,Let us know how it turns out.Later,
Ric

ric emmal

Penton Owners Group

General Discussion => Penton Talk => Topic started by: iyaoyas on March 06, 2011, 07:10:05 PM