rear shock (heat soak) HYM796

[desmo796]

Any thoughts on how heat soak from the exhaust may affect the rear shock performance?

Is this tested during the development phase of the product? This based on the foto from ktrides2 thread in the HyperMotard section (TY) .

[Seven9Six]

Originally Posted by desmo796

Any thoughts on how heat soak from the exhaust may affect the rear shock performance?

Is this tested during the development phase of the product? This based on the foto from ktrides2 thread in the HyperMotard section (TY) .

My experience is that the INTERNAL heat is what kills the rear shock. The close placement of the rear header pipe on our Hyper would unlikly be any cause to premature shock wear. I have a tender ass,...and i can tell you that i feel the dampening going to shit already on my 796 Hyper with only 2000 miles. When ridden hard on a warm day....the rebound is not so good. I expect this with every stock rear shock that i ever had. Ohlins soon.....as soon as i pay for the slip on.

If it bothers you....go and buy one of those cheap $20 heat sheilds they sell.

[ktrides2]

Originally Posted by desmo796

Any thoughts on how heat soak from the exhaust may affect the rear shock performance?

Is this tested during the development phase of the product? This based on the foto from ktrides2 thread in the HyperMotard section (TY) .

Ha, you're welcome, sorry I couldn't answer your question. I have no idea

[mypetmonster]

Originally Posted by Seven9Six

If it bothers you....go and buy one of those cheap $20 heat sheilds they sell.

only cause i'm anal i'd get something like this but where would you grab one? something similar to what they make for off road suspension?

[mell0]

If exhaust heat won't melt/disform fairings then I highly doubt it would effect such a rugged piece like a shock/spring.

[Rikosintie]

Just some data, not enough to draw a conclusion from, but i had just come in from a ride on my 1100 when I saw this. The bike had been sitting about 20 minutes and I used an infrared thermometer to take some temps:
Shock reservoir 114f
Shock spring 112f
Exhaust pipe on the chain side 127f

I will take the thermometer with me if I can remember and take measurements at rest stops.

I am sure that the reservoir on my CRF450R gets hotter than that during a 15 minute race. I have never felt the spring on my 450 after a ride.

I think I saw a picture of a hyper here that had the Termi exhaust wrapped with Hi temp wrap. That would probably eliminate any heating issue.
Michael

[desmo796]

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OoOoooOOoo data, now you're talking.
Good stuff, looking forward to your analysis.

Originally Posted by Rikosintie

Just some data, not enough to draw a conclusion from, but i had just come in from a ride on my 1100 when I saw this. The bike had been sitting about 20 minutes and I used an infrared thermometer to take some temps:
Shock reservoir 114f
Shock spring 112f
Exhaust pipe on the chain side 127f

I will take the thermometer with me if I can remember and take measurements at rest stops.

I am sure that the reservoir on my CRF450R gets hotter than that during a 15 minute race. I have never felt the spring on my 450 after a ride.

I think I saw a picture of a hyper here that had the Termi exhaust wrapped with Hi temp wrap. That would probably eliminate any heating issue.
Michael

[Rikosintie]

I don't think there is a problem. I rode down a set of twistys tonight and measured the temps at the bottom. The road was downhill and shock gets a pretty good workout.

The reservoir was 117f, the spring 137f and the exhaust maxed the thermometer, it reads to 480f.

Michael

[desmo796]

I would say so.

I am thinking about stop and go traffic for commuting.

Thanks for the feedback