Rear hub in drilling 12/8 holes
Moderator: robbosmans
I need hub for Corima rim - rear has 20 holes and 12 spokes on DS; 8 spokes on NDS
Who making hubs in that kind of drilling?
Thanks
Who making hubs in that kind of drilling?
Thanks
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- WinterRider
- Posts: 564
- Joined: Tue Feb 05, 2013 2:46 pm
Curious as to how your BHS 12-8 hub is laced.. grouped spokes or ?
Kavitator why not just use 24H and go skip one left side?
Kavitator why not just use 24H and go skip one left side?
Litespeed 2000 Appalachian 61 cm
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
Because... that would be 12:6 ...
- WinterRider
- Posts: 564
- Joined: Tue Feb 05, 2013 2:46 pm
Used 12-8 w 24H... yet 3 into 12 goes 4 of course.. and 4 at 2x gives 8. The H skipped 1x.. adjoining crosses then meet.
Recently laced 12-8 w the old generation Bontrager paired 24 hole rear.. gave equal tension L/R.
12-6 would work fine too... deep rim .. rider lower wattage... been done lots. 18H bargain finds I make 27H rears.. 18-9.
Litespeed 2000 Appalachian 61 cm
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
- WinterRider
- Posts: 564
- Joined: Tue Feb 05, 2013 2:46 pm
Boy I am glad I never post and THEN think about it... I've got you by miles....
12-8... with the flow going to heavy, wide truck-like rims methinks this lacing has some potential. Both I've done to date utilized 24H hubs w 1x skip one hole heads in left side-- radial DS.
DS is the lacing pattern issue w 3 to 2 spoke count... 2x L means some spoke math. I don't think arriving at a formula of much difficulty.. granted this route isn't going to see many wheels. Yet.. 12-8 means supposedly an increase in lateral stiffness over the 2-1 16/8's via the left side. 16/8 DS lacing is straight across counter-posed spoking... very solid... IMO the ideal rear lacing. All radial DS 12-8 feels same.. albeit my experiments w 500+ gr 'truck' rims and 14g wire. Lacing w Lasers means all of 15-17 grams of weight savings... no reason ... unless one thinks using alloy nips makes sense over brass. I'm not in that camp.
12-8 in a Kinlin 200 380's gr rim w Powerway R13 .. that'd be my trial to run. 16/8's stay put w 200's for me running Pro One tubeless.. around 105/95 kgf tension levels. I think the total kgf rim limit is in that range.. given the my 180's lb load. The 12/8 options DS are 2 pulling w one pushing, 2x ... or all radial.. Lasers. Or.. you tell me.
12-8 is purely recreational pursuit in my world. Why not.. the calendar keeping rolling along.
Litespeed 2000 Appalachian 61 cm
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
Litespeed 1998 Blue Ridge 61cm
Fitness rider.. 1 yr from seven decades age.
That is my story and I'm stick'n to it.
Please post some pics of your wheels!
Wait...are you saying that 12-8 should have more lateral stiffness than 16-8? More spokes is always stiffer than less spokes, all else being equal, so where are you getting more stiffness from? Better bracing angle via going all heads in, and if so, on which flange? Or have I misunderstood entirely?WinterRider wrote: ↑Thu Jun 21, 2018 1:06 pmYet.. 12-8 means supposedly an increase in lateral stiffness over the 2-1 16/8's via the left side.
Agreed that 16-8 seems ideal. You are getting a nice tension balance with 12-8 though. So it sounds like you are saying that in terms of ride feel you fine 12-8 feels just as stiff. which gets back to the point that your 12-8 wheel is radial DS. Is that all heads in, which is where you might pick up your better bracing angle, but in the first quote above it sounds like you are saying you pick up extra stiffness on 12-8 via the left side, not the right (DS).WinterRider wrote: ↑Thu Jun 21, 2018 1:06 pm16/8 DS lacing is straight across counter-posed spoking... very solid... IMO the ideal rear lacing. All radial DS 12-8 feels same..
...around 105/95 kgf tension levels.
12-8 is purely recreational pursuit in my world. Why not.. the calendar keeping rolling along.
Like Marin, I'd love some pics, as it is a lot easier to see how this all goes together than trying to visualize from a descripion.
Remember that when doing radial DS, you need a large diameter 1 piece, strong and stiff hub shell, as the drive torque now needs to be transmitted across the barrel to the left side flange. At some point I saw data quantifying how much a hub shell can wind up with radial DS lacing, and it was surprising.
What kind of Corima rim is that? Was it originally intented for one of their complete wheels? It seems weird for them to do an aftermarket rim in such an unusual drilling.
I think he's doing radial DS and radial NDS.
So he doesn't really need a stiff hub shell...
So he doesn't really need a stiff hub shell...
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