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Dt swiss spline 1 that are currently 100 and 142.
Looking at a new bike that has boost spacing. Is it just an end cap swap? If so can someone post a link to what I need front and rear?
yes, but you'll need the disc/rotor spacer kit too which is about a Fiver. They're basically just spacers of 5mm on the front on each side..
Generic kiss are available on eBay, but can be a faff with spacers falling out on wheel changes. MRP do a 'better boost' kit for DT, is relatively expensive but will thought out.
Wolf Tooth Boostinator another option, they do DT specific kits
For the front MRP better boost. There are two versions depending on what your hubs are based on (either the max 15mm 350/240s or oversized 240 that goes to 20mm). The MRP pages has more info including measurements. From the limited view on the picture the front does not look like the 15mm max version though hard to be sure. Better boost kit does not require a fishing change.
For the rear wolftooth do a replacement NDS end cap and rotor spacer for ratchet hubs. This puts the cassette in the right place but requires a re-dish of the rear wheel. Again not cheap. There is an alternative kit available from Germany which is a bit cheaper and does the same thing with longer end cap.
I'm assuming the spline one is based on either the 350 or 240 hub. If it's based on the cheaper 370 pawl hub probably better selling them than throwing money at expensive spacers.
As above I’d check the MRP Better Boost kit for probably the best solution if it fits your hub. Wolftooth Boostinator next best and a bit cheaper.
If neither fit your hub then Velosolo do generic kits with loose spacers. I think if I were going this route I’d try to glue the spacers onto the hubs so they don’t fall out loose when you take the wheel out.
Here's a thought that may have no engineering / physics merit
15mm hubs (standard or boost) fit into the inside of the fork so spread the load on the axle from the outside of the fork up where the spacer meets the the bearing on each end. A 5mm spacer will just fit inside the fork meaning the spacer no longer takes any load so it's borne only at each end and not spread further across the axle.
The spacers don't bear any load as such.
They just keep the wheel where it should be.
Look at Rockshox Torque Cap forks running standard end cap for a good example.
I use one of these on my 240s front with a mezzer. slightly fiddly to put on but no issues when riding