The Official Korua Shapes Thread  

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matty
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12/11/2018 3:46 pm  

I think that there may have been different amounts of setback on the insert packs, too? (Obviously this has nothing to do with effective edge, just identifying ways to make same sidecut/widths ride differently).


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slim253
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12/11/2018 7:56 pm  
Posted by: MikeHoncho

So, I emailed Korua to ask if all the molds are the same.  Here’s the response:

-- attachment is not available --

 

@matty same board @spenser same core, except the plus line

Posted by: Mig

From what I can remember, the Asytoni was part of the original line-up and did share the same basic specs. Cannot say if only the nose and tail length were different. They strangely had different effective edge listed too, for the same nose/waist/tail widths, taper and sidecut. Only way I can think of to have all those basic specs identical, yet have a different effective edge is to play with the sidecut length and blend area (where sidecut transitions into the nose). Making that transition short and agressive, versus long and smooth, can move the widest part of the nose/tail in or out. Not easy describing this without a drawing... LOL

 

i guess i am still confused on this, as i don't understand how tip/waist/tail widths and sidecut radius can be the same, but have a different effective edge? is the contact point flat for an extended bit?

135 lbs. (62kg) | 5'7" (170cm) | Mens U.S. 8 boots | Fischer RC4 Worldcup GS 189cm


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Elektropow
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13/11/2018 4:51 am  

Also, core thickness. How else would they claim the freestyle addition as being softer?


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slim253
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14/11/2018 8:53 pm  
Posted by: Elektropow

Also, core thickness. How else would they claim the freestyle addition as being softer?

i believe from the information provided, both on their website and the email @mikehoncho received, everything is the same: core, base, sidewalls, etc.

i still really wanna try one, but i'm not bout that christian louboutin"red bottom" base...

135 lbs. (62kg) | 5'7" (170cm) | Mens U.S. 8 boots | Fischer RC4 Worldcup GS 189cm


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unsuspected
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16/11/2018 11:39 pm  
Posted by: slim253
Posted by: Elektropow

Also, core thickness. How else would they claim the freestyle addition as being softer?

i believe from the information provided, both on their website and the email @mikehoncho received, everything is the same: core, base, sidewalls, etc.

i still really wanna try one, but i'm not bout that christian louboutin"red bottom" base...

There are Plus black on black ones also... )

180cm (5'11") I 102kg (222lbs) I 265MP (8,5US)
Go wide!


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MikeHoncho
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17/11/2018 7:18 am  
Posted by: Mig

From what I can remember, the Asytoni was part of the original line-up and did share the same basic specs. Cannot say if only the nose and tail length were different. They strangely had different effective edge listed too, for the same nose/waist/tail widths, taper and sidecut. Only way I can think of to have all those basic specs identical, yet have a different effective edge is to play with the sidecut length and blend area (where sidecut transitions into the nose). Making that transition short and agressive, versus long and smooth, can move the widest part of the nose/tail in or out. Not easy describing this without a drawing... LOL

 

Changing blend area’s only effects running length.  Effective edge wouldn’t change with a longer / shorter blend area...;)

This post was modified 4 weeks ago by MikeHoncho

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Lonz
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17/11/2018 10:42 am  

I don't understand.  If you lengthen or shorten the widest sections of the nose and tail (i.e. lengthen or shorten the blend area), haven't you just altered the effective edge length?  I would think that the effective edge would be everything between the two most distal points of the widest sections of the nose and tail, no? 


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YaThatsMe
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21/11/2018 5:06 am  

Hey guys, looking to purchase a cafe racer as my daily driver for the season. Can anybody comment if it's a good choice for someone that sticks mostly to groomers and just likes making those turns?

Is it an overly stiff board or can you cruise on it when getting a bit tired?


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Mig
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21/11/2018 7:28 am  
Posted by: MikeHoncho
Posted by: Mig

From what I can remember, the Asytoni was part of the original line-up and did share the same basic specs. Cannot say if only the nose and tail length were different. They strangely had different effective edge listed too, for the same nose/waist/tail widths, taper and sidecut. Only way I can think of to have all those basic specs identical, yet have a different effective edge is to play with the sidecut length and blend area (where sidecut transitions into the nose). Making that transition short and agressive, versus long and smooth, can move the widest part of the nose/tail in or out. Not easy describing this without a drawing... LOL

 

Changing blend area’s only effects running length.  Effective edge wouldn’t change with a longer / shorter blend area...;)

Sorry it took me so long to see this. It's actually the opposite. Running length will be affected by the camber profile. With all other parameters being equal (or almost), effective edge will change with longer or shorter blend area, as it is determined by the outline of the board (length from widest part of the nose to widest part of the tail) and not by its profile.

I will try to post a drawing to illustrate the shorter/longer blend area thingy.

This post was modified 3 weeks ago by Mig

~6' or 182cm | way too fat | US 10.5 - Mondo 28.5
Quiver: Fullbag boards 154 to 181 cm | powder/carving/snowsurf
Boots: Burton Driver X with Scarpa Plus Fit High Liners and custom powerstrap
Bindings: Ride El Hefe | Now Drive


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Mig
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21/11/2018 7:30 am  
Posted by: Lonz

I don't understand.  If you lengthen or shorten the widest sections of the nose and tail (i.e. lengthen or shorten the blend area), haven't you just altered the effective edge length?  I would think that the effective edge would be everything between the two most distal points of the widest sections of the nose and tail, no? 

Yes, exactly.

~6' or 182cm | way too fat | US 10.5 - Mondo 28.5
Quiver: Fullbag boards 154 to 181 cm | powder/carving/snowsurf
Boots: Burton Driver X with Scarpa Plus Fit High Liners and custom powerstrap
Bindings: Ride El Hefe | Now Drive


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GD
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21/11/2018 8:36 am  
Posted by: YaThatsMe

Hey guys, looking to purchase a cafe racer as my daily driver for the season. Can anybody comment if it's a good choice for someone that sticks mostly to groomers and just likes making those turns?

Is it an overly stiff board or can you cruise on it when getting a bit tired?

@coleslawed owned the 56, so he might be able to help.

And @awd1105 just got the 59 this yr, but don't think he's gotten to ride it yet (tho have a feeling he's taking it out this Friday when we link up for some laps at our local hill's opening day 🙏🏻).

175lbs|5'7|8US Burton Ion Leather|54 Korua Tranny Finder|57 US Orbit|Burton Genies|GenX|Nitro Team x Drink Water|25.6cm+ ww|7.5m+ sidecuts|Onterrible


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awd1105
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21/11/2018 8:48 am  
Posted by: GD
Posted by: YaThatsMe

Hey guys, looking to purchase a cafe racer as my daily driver for the season. Can anybody comment if it's a good choice for someone that sticks mostly to groomers and just likes making those turns?

Is it an overly stiff board or can you cruise on it when getting a bit tired?

@coleslawed owned the 56, so he might be able to help.

And @awd1105 just got the 59 this yr, but don't think he's gotten to ride it yet (tho have a feeling he's taking it out this Friday when we link up for some laps at our local hill's opening day 🙏🏻).

Haven't ridden it yet, but soon for sure. Did the requisite handflex and carpet-boarding session, and this thing is stiiiiiiiiiiff. Very excited to try it, worried I won't like it, but that's normal when trying something new. Will toss up a quick review once I've spent some time on it. 

5'8 | 205lbs | Ontario | Boots: SLX | Bindings: Genesis X & Diode | Boards: Burton - Cheetah 159, Deep Thinker 160, LandLord 163 / Korua - Cafe Racer 159, Stealth 163


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MikeHoncho
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21/11/2018 9:32 am  
Posted by: Mig
Posted by: MikeHoncho
Posted by: Mig

From what I can remember, the Asytoni was part of the original line-up and did share the same basic specs. Cannot say if only the nose and tail length were different. They strangely had different effective edge listed too, for the same nose/waist/tail widths, taper and sidecut. Only way I can think of to have all those basic specs identical, yet have a different effective edge is to play with the sidecut length and blend area (where sidecut transitions into the nose). Making that transition short and agressive, versus long and smooth, can move the widest part of the nose/tail in or out. Not easy describing this without a drawing... LOL

 

Changing blend area’s only effects running length.  Effective edge wouldn’t change with a longer / shorter blend area...;)

Sorry it took me so long to see this. It's actually the opposite. Running length will be affected by the camber profile. With all other parameters being equal (or almost), effective edge will change with longer or shorter blend area, as it is determined by the outline of the board (length from widest part of the nose to widest part of the tail) and not by its profile.

I will try to post a drawing to illustrate the shorter/longer blend area thingy.

@Mig I’ve always know it to be the opposite.  Spent three years doing board design at Thermal Snowboards in the 90’s.  We calculated it differently.  Effective edge was widest part of the board (contact points on edge during a turn), or all of the side cut.  Running length was determined by how much board was on snow when flat.  So, effective edge was all fo the edge including the blend area in contact when making a turn, and running length was just edge used when not in a turn...(for lack of a better way to describe it).

Must be because your Canadian 😜

This post was modified 3 weeks ago 3 times by MikeHoncho

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MikeHoncho
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21/11/2018 9:50 am  
Posted by: MikeHoncho
Posted by: Mig
Posted by: MikeHoncho
Posted by: Mig

From what I can remember, the Asytoni was part of the original line-up and did share the same basic specs. Cannot say if only the nose and tail length were different. They strangely had different effective edge listed too, for the same nose/waist/tail widths, taper and sidecut. Only way I can think of to have all those basic specs identical, yet have a different effective edge is to play with the sidecut length and blend area (where sidecut transitions into the nose). Making that transition short and agressive, versus long and smooth, can move the widest part of the nose/tail in or out. Not easy describing this without a drawing... LOL

 

Changing blend area’s only effects running length.  Effective edge wouldn’t change with a longer / shorter blend area...;)

Sorry it took me so long to see this. It's actually the opposite. Running length will be affected by the camber profile. With all other parameters being equal (or almost), effective edge will change with longer or shorter blend area, as it is determined by the outline of the board (length from widest part of the nose to widest part of the tail) and not by its profile.

I will try to post a drawing to illustrate the shorter/longer blend area thingy.

@Mig I’ve always know it to be the opposite.  Spent three years doing board design at Thermal Snowboards in the 90’s.  We calculated it differently.  Effective edge was widest part of the board (contact points on edge during a turn), or all of the side cut.  Running length was determined by how much board was on snow when flat.  So, effective edge was all fo the edge including the blend area in contact when making a turn, and running length was just edge used when not in a turn...(for lack of a better way to describe it).

Must be because your Canadian 😜

...after re-reading your post.  I think we are saying the same thing.  Wondering if your use of the term “blend” area is the same as mine...


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YaThatsMe
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21/11/2018 2:44 pm  
Posted by: awd1105
Posted by: GD
Posted by: YaThatsMe

Hey guys, looking to purchase a cafe racer as my daily driver for the season. Can anybody comment if it's a good choice for someone that sticks mostly to groomers and just likes making those turns?

Is it an overly stiff board or can you cruise on it when getting a bit tired?

@coleslawed owned the 56, so he might be able to help.

And @awd1105 just got the 59 this yr, but don't think he's gotten to ride it yet (tho have a feeling he's taking it out this Friday when we link up for some laps at our local hill's opening day 🙏🏻).

Haven't ridden it yet, but soon for sure. Did the requisite handflex and carpet-boarding session, and this thing is stiiiiiiiiiiff. Very excited to try it, worried I won't like it, but that's normal when trying something new. Will toss up a quick review once I've spent some time on it. 

Nice @awd1105! Looking forward to hearing your thoughts after you use it!


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