[bullcrew]

So I grabbed a new fox 36 it's 15x110 I have a couple front wheels (dt 240, dt340 and king all 20x110) and it seems the easiest is to convert a dt 240 front hub..

I see kits with end caps that reduce and make it 15x110....BUT I think there should be a sleeve between bearings that's necked down to 15mm as well..yes or no....

I can have a new wheel laced bit I already have wheels and spacers for boost on the rotor...I'd rather convert 1 this way I can use it as a backup for other bike of needed...


I read in a other post and can't find it now but it was a conversion to 15x100 then a sleeve to take it to 110

 

[canadmos]

I could be wrong, but I think I think the rotor needs to spaced out too?

Because you know, bike industry. 110×15 and 110×20 are somehow different.

 

[buckoW]

I use the MRP better boost adapters for 240 hubs. Works fine for me.

 

[Jm_]

I can't get the caps off my 240 front. IDK what is wrong. I do use the MRP brake adapter on that bike and it's tits. I even found one floating around in a parts bin at a local shop recently when I was looking for an IS adapter.

 

[buckoW]

I can't get the caps off my 240 front. IDK what is wrong. I do use the MRP brake adapter on that bike and it's tits. I even found one floating around in a parts bin at a local shop recently when I was looking for an IS adapter.

I was wondering if that adapter works better than the disc spacer

I have to use clamps in a vice to hold the inner tube spacer to get the second cap off.

 

[Jm_]

I was wondering if that adapter works better than the disc spacer

I have to use clamps in a vice to hold the inner tube spacer to get the second cap off.

I've beat them to hell with no sign of them budging. I gave up. Seemed like I was going to permanently damage them.

 

[bullcrew]

So there's no spacer needed between the bearings to reduce it?
I think the mrp ones said 15x100 to 15x110..

I need to go from 20x110 to 15x110.



Just pull old caps off press new ones on?

I've got a spacer already just need the make sure caps are good...

 

[englertracing]

Somewhere between most and many hubs the thru axle doesn't make contact with the bearing spacer only the end caps

 

[bullcrew]

Somewhere between most and many hubs the thru axle doesn't make contact with the bearing spacer only the end caps

That is true...it floats a bit

 

[Carraig042]

Are your end caps pressed are screw on? I looked at the technical manual for the Spline wheels and looks like if screwed on then only need new caps, if press then you may need an axle adapter. (not sure if you 240 would be the same as this in the manual?) Info starts on page 15

Manuals | DT Swiss

www.dtswiss.com

 

[6thElement]

I need to go from 20x110 to 15x110.

Is it "classic" or boost 20x110? As others are mentioning there's a big different as you'll need appropriate axle adapters and an adapter to move the brake/rotor alignment.

 

[bullcrew]

Is it "classic" or boost 20x110? As others are mentioning there's a big different as you'll need appropriate axle adapters and an adapter to move the brake/rotor alignment.

My hub is straight 20x110
My fork is 2020 fox 36 factory so 15x110 boosti have the rotor spacer already

 

[iRider]

My hub is straight 20x110
My fork is 2020 fox 36 factory so 15x110 boosti have the rotor spacer already

Just use an aluminum tube with 20 mm OD and 15 mm ID then. Adds about 20 g.

 

[bullcrew]

Are your end caps pressed are screw on? I looked at the technical manual for the Spline wheels and looks like if screwed on then only need new caps, if press then you may need an axle adapter. (not sure if you 240 would be the same as this in the manual?) Info starts on page 15

Manuals | DT Swiss

www.dtswiss.com

It's front hub and I believe it's press..they have the flat detents on outside round at ends..the wheelset is fr1950 using 240 hubs

 

[bullcrew]

Just use an aluminum tube with 20 mm OD and 15 mm ID then. Adds about 20 g.

Probl with fox is they have cutaways on fork for the 15mm to slide into like a cradle on both sides...20mm comes are way to big and won't fit into the cutaways.
I thought about that though .

 

[marshalolson]

Mrp makes a bunch of options. You want this one: DT 240 OS

Used one many miles and it work fine.

 

[bullcrew]

Mrp makes a bunch of options. You want this one: DT 240 OS

Used one many miles and it work fine.

Was your hub 20mm originally?

Unless these caps go into bearings my ID of my bearings will be 20mm which the 15mm shaft will never touch putting the load into the caps and the recess that hold the caps..no bearing support

 

[bullcrew]

Just use an aluminum tube with 20 mm OD and 15 mm ID then. Adds about 20 g.

This may work between end caps so axle is supported by bearings.

They need to make an end cap that protrudes through bearing, displacing the distance of the 15mm axle to the 20mm Id of the bearing so it supports axle load...would only have to insert 3/8 or 1/2" through bearing

 

[marshalolson]

Was your hub 20mm originally?

Unless these caps go into bearings my ID of my bearings will be 20mm which the 15mm shaft will never touch putting the load into the caps and the recess that hold the caps..no bearing support

They thread onto the original axle, so yes, bearing support. Many miles/multiple years on exactly this setup. Worked fine for me. I think @buckoW used this same setup for quite some time too.

Edit to add- this is how essentially all 20mm compatible hubs adapt to 15mm forks. The good ones (DT OS, Hadley, king) thread onto the axle. Many others are just press fit.

 

[Jm_]

This is what I have, I guess these might be screw-on end caps? I believe the diagrams indicated press on, but there are these flats machined in.

 

[Jm_]

And I have these end caps

 

[6thElement]

This is what I have, I guess these might be screw-on end caps? I believe the diagrams indicated press on, but there are these flats machined in. View attachment 161758

Those are screw on I think, my wife has the FR1950 wheelset with 240 hubs and I've had the endcap come loose before and need to be screwed back on.

 

[Jm_]

Fukin A. That's dumb.

 

[bullcrew]

Yeah I checked em...they are screw on...you be right!!!!

So it's ok to use press fit end caps on there the 240 OS?

Seems there won't be bearing support being they sit at face of bearing and ID of bearing is larger than 15mm...I need to see a year down of hubs maybe go to garage and unscrew em..

 

[Jm_]

Hard no, the press-in caps do not fit the ends of the screw-on-end 240 hub. I don't know why mine is different, the MRP kit seemed to make no distinction at the time. Also, don't know how to get the axle out of the 240 so I can get at the bearings. When you use the flats to get the screw-on caps off, only one comes off, the other remains fixed. It may be a big oversize axle in there (looks to be at least 20mm), but it's very thin and doesn't look like it'll pound out.

 

[bullcrew]

Hard no, the press-in caps do not fit the ends of the screw-on-end 240 hub. I don't know why mine is different, the MRP kit seemed to make no distinction at the time. Also, don't know how to get the axle out of the 240 so I can get at the bearings. When you use the flats to get the screw-on caps off, only one comes off, the other remains fixed. It may be a big oversize axle in there (looks to be at least 20mm), but it's very thin and doesn't look like it'll pound out.

So one tightens the other comes loose..try to tighten and get other it loosens and other won't come free...lol
Like a circus act or three stooges skit....lol

I'll slap a new one off over tighten and quick twist the other.simple and of the new caps screw on thTa bonus...it'll be solid

 

[buckoW]

There is a kit for the DT 240 OS with 2 screw on end caps and a disc spacer. They work well and I have a few.
I noticed there is a different kit for the regular 240 non OS. I‘m not sure what is the difference but it looks like @Jm_ just figured it out.

 

[Jm_]

There is a kit for the DT 240 OS with 2 screw on end caps and a disc spacer. They work well and I have a few.
I noticed there is a different kit for the regular 240 non OS. I‘m not sure what is the difference but it looks like @Jm_ just figured it out.

Yeah, I just use the two 5mm ebay spacers. I got extras. I take my front wheel off so rarely that I don't really care that much. I bought the MRP mostly for the brake adapter. That part is slick.

 

[bullcrew]

I ordered the 240 OS should be here by Friday...I couldn't see a pic but I assume they are screw on

 

[marshalolson]

To install the new end caps, both sides have flats for cone wrenches. You can unthread one of them. Then press the axle out of the bearings with the other side still threaded on. You can then use shaft clamps or a strap Wrench to hold the axle and pull the other cap off. Reinstall the axle and thread the new boost caps back on.

Sharing this because I have burned far too many calories trying to get the second cap off with the axle still in the hub without marring the threads. In short… don’t bother trying that strategy, haha.

 

[HAB]

I just drill a hole through the middle of the sleeve on my 240 OSs. Stick an allen wrench through the hole and take the second cap off.

 

[bullcrew]

I'll pop it out and take a look..that hole is a good idea btw....there's no way to lock it down....

I found king has a conversion I may grab that as well so both bikes can flip flop fronts in a pinch with the backup wheelset...

 

[bullcrew]

Bike bling had the king 20mm to 15x100mm axle conversion kit so grabbed it and had a problem solver boost kit...gonna run my king hubs. Going to grab the dt kit as well it's cheap enough and have a backup....

Thanks to everyone.....

 

[4xBoy]

I'm still looking for a 12x110 conversion for my super gravgrav.

 

[buckoW]

I'm still looking for a 12x110 conversion for my super gravgrav.

Get a guy with a lathe to make you a tube spacer?