45 to 5o mph is this normal??

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hotflash44
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Re: 45 to 5o mph is this normal??

Post by hotflash44 » Mon Aug 20, 2018 2:48 pm

old school way to get a idea on accuracy is get a watch,(the old fashion thing that goes on the wrist), drive at a steady 60mph for one minute on the highway that has the mile markers. one mile at 60 mph until you get to a mile marker your accuracy is in the ball park. :cheers:
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Re: 45 to 5o mph is this normal??

Post by Msblu79 » Mon Aug 20, 2018 3:02 pm

Steady cruising speed between 50 & 60 mph is safe for the drivetrain (2WD model) and the system will last a long time with little trouble. Run it at speeds over 60 continuously and it gobbles gas, FD runs hot, and stuff starts to come unglued pretty quick. At 55 it is turning about 4300rpm, at 65-70 it is at 5500rpm, that is to much for sustained running and will kill it in short order. I run mine everyday to work at 55-60 max for 20 miles and I have done this for 8 years now and have 84,000 km's on it and she runs just fine. If I tried to run it at 65-70 everydady it would need to be overhauled every year. :)
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Re: 45 to 5o mph is this normal??

Post by Wildhorse Cafe » Mon Aug 20, 2018 4:21 pm

Your bike will last longer.
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Re: 45 to 5o mph is this normal??

Post by hillbillybob » Mon Aug 20, 2018 4:47 pm

45 is good for me....but I'm old, have nowhere to go, all day to get there, and usually have the wife and dog along for the ride. At this speed, the engine is humming along in the 3250 rpm range, and sounds oh so happy.

If you get stuck behind me....sorry about that. Leave two minutes earlier tomorrow, and you'll be ahead of me.
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Re: 45 to 5o mph is this normal??

Post by RC20 » Mon Aug 20, 2018 6:01 pm

My grand dad felt the same way. Ok on back roads, not so much on main roads holding up traffic.

Pull off and let em by.

Speed limits are set for two reason. One is safety, the other is to allow traffic to flow expeditiously. Moving at less than the speed limit affects safety as well.
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Re: 45 to 5o mph is this normal??

Post by atlasheating » Wed Aug 22, 2018 9:06 am

Mine is real happy at 55. I like to be able to drive the speed of the road and everyone on it, but it is not comfortable over 55.

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Re: 45 to 5o mph is this normal??

Post by xpatriot » Wed Aug 22, 2018 10:20 am

Quick question (maybe stupid) but assume the 650 spins at the same rev's as a 750 (I've never heard of different gearing) at corresponding speeds.
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Re: 45 to 5o mph is this normal??

Post by hotflash44 » Wed Aug 22, 2018 11:06 am

xpatriot wrote:
Wed Aug 22, 2018 10:20 am
Quick question (maybe stupid) but assume the 650 spins at the same rev's as a 750 (I've never heard of different gearing) at corresponding speeds.
think its the final drive ratio your referring to,not sure about your rig, but the CT and Gear Up can have different ratios, the CT will be better at higher highway speeds. PS old school way to find out the rear end ratio is to compare the rotation times of the drive shaft and the rear tire.if the drive shaft rotates three and a quarter turns to one tire rotation, then your rear axle gear ratio is 3.25:1. :cheers:
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Re: 45 to 5o mph is this normal??

Post by Lokiboy » Wed Aug 22, 2018 3:05 pm

wyowillys46 wrote:
Mon Aug 20, 2018 2:38 pm
I’ve found the speedometer reads ~10% higher than actual speed. I haven’t had a chance to test the accuracy of the odometer.
Based on using measured miles in tenths, to convert from kilometers to miles, instead of using .62 I need to use .7 for an accurate in miles measurement.

If I wish to know actual KMs vs. odometer readout I multiply by 1.148
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Re: 45 to 5o mph is this normal??

Post by hillbillybob » Wed Aug 22, 2018 5:43 pm

xpatriot wrote:
Wed Aug 22, 2018 10:20 am
Quick question (maybe stupid) but assume the 650 spins at the same rev's as a 750 (I've never heard of different gearing) at corresponding speeds.
There is a 650 manual available on this site. When comparing it to my 2006, 750 manual, I found that the 2000 650's final drive ratio as 4.62 to 1, which is the same as my 750's. Both run the same 19" wheels. However, even though first and second gear ratios are identical in both, 3rd and 4th gears are just a little bit lower in the 650. Third and forth gear, 650 = 1.7:1, and 1.3:1. The 750's are 1.56:1, and 1.19:1.

Downloadable shop manual can be found by clicking below.
https://sovietsteeds.com/forums/viewtop ... 63#p226262
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Re: 45 to 5o mph is this normal??

Post by xpatriot » Wed Aug 22, 2018 8:19 pm

Ty Hillbillybob!
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Re: 45 to 5o mph is this normal??

Post by Thickasabrick » Wed Aug 22, 2018 11:12 pm

With you on 45 - 50 MPH...I'm starting to go the longer back ways to a destination. Enjoying two-lane highways and leaving the slab for the masses. The grandkids like puddles...shallow puddles.
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Re: 45 to 5o mph is this normal??

Post by Mr Wazzock » Thu Aug 23, 2018 6:47 am

hotflash44 wrote:
Wed Aug 22, 2018 11:06 am
xpatriot wrote:
Wed Aug 22, 2018 10:20 am
Quick question (maybe stupid) but assume the 650 spins at the same rev's as a 750 (I've never heard of different gearing) at corresponding speeds.
think its the final drive ratio your referring to,not sure about your rig, but the CT and Gear Up can have different ratios, the CT will be better at higher highway speeds. PS old school way to find out the rear end ratio is to compare the rotation times of the drive shaft and the rear tire.if the drive shaft rotates three and a quarter turns to one tire rotation, then your rear axle gear ratio is 3.25:1. :cheers:
By default CT comes with the same FD gearing, you have to ask for the different 3.25:1 or whatever ratio when you order it if you're want it. This means slightly more rpm vs mph due the 18 vs 19 inch wheels. However the flip of the coin is can pull hills and headwinds and loads a bit better. So I prefer the standard 4.xx:1 ratio.

HTH
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Re: 45 to 5o mph is this normal??

Post by hotflash44 » Thu Aug 23, 2018 8:21 am

Mr Wazzock wrote:
Thu Aug 23, 2018 6:47 am
hotflash44 wrote:
Wed Aug 22, 2018 11:06 am
xpatriot wrote:
Wed Aug 22, 2018 10:20 am
Quick question (maybe stupid) but assume the 650 spins at the same rev's as a 750 (I've never heard of different gearing) at corresponding speeds.
think its the final drive ratio your referring to,not sure about your rig, but the CT and Gear Up can have different ratios, the CT will be better at higher highway speeds. PS old school way to find out the rear end ratio is to compare the rotation times of the drive shaft and the rear tire.if the drive shaft rotates three and a quarter turns to one tire rotation, then your rear axle gear ratio is 3.25:1. :cheers:
By default CT comes with the same FD gearing, you have to ask for the different 3.25:1 or whatever ratio when you order it if you're want it. This means slightly more rpm vs mph due the 18 vs 19 inch wheels. However the flip of the coin is can pull hills and headwinds and loads a bit better. So I prefer the standard 4.xx:1 ratio.

HTH
Mr,Waz good point, i used the 3.25:1 just as a example, i personally like the stock gearing on my GU as im not interested in cruising over 55mph myself and certainly don't want to give up the hill climbing grunt. :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

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