2020 CRF250 Casting Flaw?

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2/10/2020 7:29 PM
Edited Date/Time: 2/10/2020 7:30 PM

I took delivery on the new bike last week and my right side case halve appears to have had some grinding/modifying performed on it. It definitely must’ve’ occurred at the factory and the only reason I could come up with is to perhaps remove excess material from a casting flaw/imperfection…? As you can see, it extends from the top of the clutch cover all the way down to past the swing-arm pivot. So it’s a fairly large area and was certainly intentional.

Obviously not going to affect performance or reliability of the bike but by the same token it’s disheartening to see this on a brand new bike. I have sent the pics the salesman and said he would discuss with the service guys and get back to me.

Having bought 15 or so showroom new bikes in my time, this is a new one on me.

Thoughts from the Vital brain trust?


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'21 KX250
'20 CRF250R
'20 KTM SX-E5
'21 Husky EE-5
(2) STACYC 16eDrives

2/10/2020 8:13 PM

Typical factory clean up work might have been some excess casting.

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2/10/2020 8:33 PM

I have an 18 and have the same markings.

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2018 CRF250R

2/11/2020 1:36 AM
Edited Date/Time: 2/11/2020 1:36 AM

Casting has to have a feed and split line at some point. I wouldn't worry or feel "disheartened" just yet! Maybe buy a TM if you worried about this kind of thing

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2/11/2020 2:19 AM

It's a mass produced motorcycle made for a price. If you want a hand finished perfection garage queen, you'll have to build it yourself. Or pay someone who can. A lot.

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2/11/2020 2:55 AM

Does it do sweet skids?

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2/11/2020 7:12 AM

I got off my ass and went and checked the 2 we have sitting on the floor, both look exactly the same.

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2/11/2020 7:54 AM

I think thats the parting line in the die casting process where the mold comes apart, they must have to go in and remove some flash afterward.

I found a couple vids of Yamaha's process that I thought were cool.

https://global.yamaha-motor.com/business/cf/technology/casting/

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2/11/2020 8:22 AM

Isn't that just some basic flashing removal?

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2/11/2020 8:40 AM

My 18 has it. Photo

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2/11/2020 10:33 AM

My 2019 250 has the same thing also

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2/11/2020 10:40 AM

Thoughts are as follows:

Ride the damn DIRT bike.

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2/11/2020 11:14 AM

casting noun
cast·​ing / ˈka-stiŋ

A series of defects, surrounded by inferior material.
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