Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: XS850 on March 05, 2025, 11:02:14 AM

Title: Gearchange rod
Post by: XS850 on March 05, 2025, 11:02:14 AM: Hi All, Iâ€™ve misplaced the gearchange adjusting rod so need to make a new one (originals -new - not available).
Can someone kindly give me the measurements please? Total length, thread diameter (6mm? LH & RH thread?) and rod diameter?
Many Thanks - Bruce
Title: Re: Gearchange rod
Post by: Sesman on March 05, 2025, 06:22:43 PM: For which motorcycle!?
Title: Re: Gearchange rod
Post by: Seabeowner on March 05, 2025, 06:32:32 PM: Presume a 400.
This bit??
https://www.cmsnl.com/honda-cb400f-england_model14639/bolt-tie-rod_90065377000/
Title: Re: Gearchange rod
Post by: XS850 on March 05, 2025, 06:50:51 PM: Sorry - CB400F.

Seabeowner - yes, that one but nowhere available!

Cheers - Bruce
Title: Re: Gearchange rod
Post by: McCabe-Thiele (Ted) on March 05, 2025, 07:11:18 PM: I've sent you a PM.
Title: Re: Gearchange rod
Post by: McCabe-Thiele (Ted) on March 05, 2025, 10:17:11 PM: I have measured my old link rod with a set of calipers, I'm pretty sure it was the original one.

Total rod length is 61 mm, the shaft diameter is 7.8 mm.
Left hand M6 thread at the gearbox end - the threaded section is 15.0 mm long.
Right hand thread M6 pitch 1.0 at the shift pedal end - the threaded section is 15.0 mm long.
The main center unthreaded section is 26.0 mm with a taper at each end down to the thread that is about 2.5 mm at each end.

26+15+2.5+15+2.5=61

.(https://live.staticflickr.com/65535/54366790857_b5c88edc61_o.jpg) (https://flic.kr/p/2qQd1P4)PXL_20250305_220619739 (https://flic.kr/p/2qQd1P4) by Macabe Thiele (https://www.flickr.com/photos/187487200@N03/), on Flickr
Title: Re: Gearchange rod
Post by: XS850 on March 05, 2025, 10:28:59 PM: Thatâ€™s brilliant Ted - many thanks, exactly what I need!

Cheers - Bruce