Whose steel KIPS valves do people prefer?

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Captainpegs07
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Whose steel KIPS valves do people prefer?

Post by Captainpegs07 » 12:33 pm Aug 22 2019

Hello! I have 1993 KDX200 that I would like to get some steel KIPS valves for. I searched and see that motoduro and bdk both offer KIPS sets. In the post searches I see both are being used but I haven't seen anything about a preference between the two. The motoduros are $100 UK pounds and the BDKs are $145UK. Does anyone have a preference? Thank you!
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Re: Whose steel KIPS valves do people prefer?

Post by KDXGarage » 02:13 pm Aug 22 2019

Welcome to kdxrider.net.

I had never heard of motoduro. I wonder who was first, them or BDK.
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Re: Whose steel KIPS valves do people prefer?

Post by bufftester » 02:50 pm Aug 22 2019

My understanding is that Motoduro has old OEM stock, not steel valves. BDK makes steel valves that are not OEM.

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Re: Whose steel KIPS valves do people prefer?

Post by Captainpegs07 » 09:38 pm Aug 22 2019

I heard about both of these manufacturers from searching this forum:

http://www.motoduro.co.uk/home/1444-kaw ... steel.html

http://bdkraceeng.co.uk/tc/products.php?253
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Re: Whose steel KIPS valves do people prefer?

Post by SS109 » 06:26 pm Aug 23 2019

I personally would trust the BDK's over the Motoduro versions. Why? The BDK valves are made from a grade of steel, EN24T, specifically used in the making of components like KIPS valves. Plus, BDK has been at this a while and has a proven track record. It would be worth the extra cost IMO.
"EN24T / 817m40. EN24 is usually supplied in the T condition with a tensile strength of 850/1000 N/mm2.

EN24T steel is a popular grade of through-hardening alloy steel due to its excellent machinability in the "T" condition. EN24T is used in components such as gears, shafts, studs and bolts, its hardness is in the range 248/302 HB. EN24T can be further surface-hardened to create components with enhanced wear resistance by induction or nitriding processing."

(https://www.steelexpress.co.uk/engineer ... rties.html)
The Motoduro versions are made from some unknown type of stainless steel. Some stainless steels can result in galling with aluminum. I don't know, maybe their version is great and you would have no problems.
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Re: Whose steel KIPS valves do people prefer?

Post by kdxsully » 07:42 pm Aug 23 2019

SS109 wrote:
06:26 pm Aug 23 2019
I personally would trust the BDK's over the Motoduro versions. Why? The BDK valves are made from a grade of steel, EN24T, specifically used in the making of components like KIPS valves. Plus, BDK has been at this a while and has a proven track record. It would be worth the extra cost IMO.
"EN24T / 817m40. EN24 is usually supplied in the T condition with a tensile strength of 850/1000 N/mm2.

EN24T steel is a popular grade of through-hardening alloy steel due to its excellent machinability in the "T" condition. EN24T is used in components such as gears, shafts, studs and bolts, its hardness is in the range 248/302 HB. EN24T can be further surface-hardened to create components with enhanced wear resistance by induction or nitriding processing."

(https://www.steelexpress.co.uk/engineer ... rties.html)
The Motoduro versions are made from some unknown type of stainless steel. Some stainless steels can result in galling with aluminum. I don't know, maybe their version is great and you would have no problems.
I generally think of stainless steel as a compromise in strength.
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Re: Whose steel KIPS valves do people prefer?

Post by SS109 » 10:50 pm Aug 23 2019

kdxsully wrote:
07:42 pm Aug 23 2019
I generally think of stainless steel as a compromise in strength.
Well, it's gotta be stronger than the soft aluminum the OEM KIPS valves were made from! :grin:
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Re: Whose steel KIPS valves do people prefer?

Post by kdxsully » 08:42 am Aug 24 2019

You’re right. But if I was gonna spend money might as well get steel right?
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Re: Whose steel KIPS valves do people prefer?

Post by SS109 » 04:50 am Aug 25 2019

kdxsully wrote:
08:42 am Aug 24 2019
You’re right. But if I was gonna spend money might as well get steel right?
No doubt and especially for the reasons I stated above.
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Re: Whose steel KIPS valves do people prefer?

Post by Kdxfan4130 » 05:42 pm Aug 25 2019

[/quote]
I generally think of stainless steel as a compromise in strength.
[/quote]

One stainless steel product thats quite strong are Buchanan spokes. But yes stainless deck screws I’ve used aren’t
Restore rather than replace

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Re: Whose steel KIPS valves do people prefer?

Post by SS109 » 02:37 pm Aug 26 2019

There are quite few types of SS. 304, 316, 317, 410, 420, 430, and 434. All have their own unique alloy makeup, properties, and uses.
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