Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: kevski on July 12, 2017, 07:13:26 PM

Title: mph for rpm
Post by: kevski on July 12, 2017, 07:13:26 PM: Does anyone know what 50mph equates to in RPM for the 350four, i have a feeling my speedo is not showing the correct speed, i feel like the speedo is showing more than it feels like it's going, unless it's just me not being used to such a tiny bike,
Title: Re: mph for rpm
Post by: Trigger on July 12, 2017, 08:25:44 PM: The easiest way is to find one of those speed awareness electronic signs you get when entering a village. They are accurate as you approach it, it will tell you your speed ;)
Title: Re: mph for rpm
Post by: kevski on July 12, 2017, 09:54:46 PM: Cheers Trigg
Title: Re: mph for rpm
Post by: Johnwebley on July 12, 2017, 11:10:22 PM: Quote from: Trigger on July 12, 2017, 08:25:44 PM
The easiest way is to find one of those speed awareness electronic signs you get when entering a village. They are accurate as you approach it, it will tell you your speed ;)

or go past a speed camera van,

they will supply you with a photo,and tell you your speed
Title: Re: mph for rpm
Post by: Green1 on July 12, 2017, 11:13:40 PM: You could use your satnav there normally accurate.
Title: Re: mph for rpm
Post by: flatfour on July 13, 2017, 08:45:19 AM: My 750/4 (K2) produces 15mph per 1,000 rpm, the 500/4 12 mph per 1,000 and, from memory my 350/4 equated to 10 mph per 1,000 rpm.

Hope that this helps!
Title: Re: mph for rpm
Post by: Seabeowner on July 13, 2017, 09:51:05 AM: Pretty good flatfour, the US site quotes 9.83MPH/1000rpm for the 350. Non standard tyre dias will alter this slightly.