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Discussion Starter #1
Hi Guys,
I am experiencing a lot of vibrations on my g310r, but some people replied saying the gear to speed ratio might not be proper. It is usually after 70KPH, the vibrations start creeping in. I use the engine sound as the reference to switch gears.

1-15 1st gear
15- 35 2nd gear
35-55 3rd gear
55-75 4th gear
75 - 85 5th gear
85- above 6th gear

What about you guys? Let me know whether I am doing something wrong here or I need to take the bike to the service center.

Regards,
Ankur Vashishtha
 

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I think you are pushing a little too much. I don't think there is a specific "rule" for gear x speed ratio but if you are cruising at 75 mph in 4th you are probably above 9k rpm and for sure the bike will vibrate a lot.

When I am on the freeway just cruising at constant speed above 60mph I will be in 6th gear. If you need to overtake someone, downshift to 5th and the go back to 6th.
 

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I think you are pushing a little too much. I don't think there is a specific "rule" for gear x speed ratio but if you are cruising at 75 mph in 4th you are probably above 9k rpm and for sure the bike will vibrate a lot.

When I am on the freeway just cruising at constant speed above 60mph I will be in 6th gear. If you need to overtake someone, downshift to 5th and the go back to 6th.

OP was quoting in km/h :), so seems about right to me. (Perhaps a little low)

Ed
 

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Personally, I find the vibration in the hands is worse when the revs are kept low. I prefer to have the revs a bit higher, not to the red line, but higher than lower.

Don't ask me specifics like RPM vs speed values, it's just the way I feel the bike. I started on 2 stoke Yamaha RD's and small euro cars so I was never scared of revs.

It's the old small and fast motor vs big and slow american iron.

You got to use it as it was designed. And let's not forget our motors are 1/4 of a 1000RR (we even share it's spark plug!) and they weren't designed to go slow!
 

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It all depends on the load engine is under. Sitting in 4th gear at 50kms per hour is fine, but starts to lug if going uphill. I don't feel much vibrations around town, but then I wear proper riding gloves and boots always. May be riding without gloves gives a different feel.
 

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Especially when sliding on asphalt! /forum/images/G310Rforum/smilies/tango_face_devil.png
I came off my bike on 29 October last year at 100kms/hour... All the gear protected me, except I snapped my wrist (broken bones, complete dislocation and ulnar nerve crushed). Gloves protected the skin and kept all the fingers intact. A year down the road, I have 80 percent functionality back. I'm back on the bike after 10 months. So for me, all the gear all the time. It's already saved my skin and possibly life already. It's all fun, till something goes wrong.

BTW, bike was written off by insurance. BMW is my replacement bike.
 

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I came off my bike on 29 October last year at 100kms/hour... All the gear protected me, except I snapped my wrist (broken bones, complete dislocation and ulnar nerve crushed). Gloves protected the skin and kept all the fingers intact. A year down the road, I have 80 percent functionality back. I'm back on the bike after 10 months. So for me, all the gear all the time. It's already saved my skin and possibly life already. It's all fun, till something goes wrong.

BTW, bike was written off by insurance. BMW is my replacement bike.
Hand injuries are the worst, you really take them for granted until you injure them. I had an impact fracture on the lowest knuckle of my ring finger on my right hand due to an accident on my push bike, took quite a while to get back to normal.
 

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Hi Guys,
I am experiencing a lot of vibrations on my g310r, but some people replied saying the gear to speed ratio might not be proper. It is usually after 70KPH, the vibrations start creeping in. I use the engine sound as the reference to switch gears.
Hi Ankur

What kind of vibration is it? Tingling, buzzy through the bars? Normally if vibration is due to engine, you will feel it in the same rpm range in other gears, no matter what the road speed is. But accelerating though the gears it is less obvious as you are not holding the engine at the same revs for much time. 70 km/h is about 4500 rpm for the G310R if I remember right.
When vibration comes in at above a particular road speed, would suggest a wheel could be out of balance or worn bearings perhaps.
 

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Discussion Starter #18
That makes sense. I tried revving it harder than 6k rpm, it felt less viby but was in the run-in period. So didn't go much. Done with the first service. Will do that now.
 
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