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I'm toying with perhaps putting a Bluto or Mastodon on the front of my fatty, which has been run rigid for several years. I've currently got a Hope fatsno front hub set up for a 135mm QR.
Is there a simple set of adaptors for this hub that work with a 150mm dropout, 15mm thru axle suspension fork?
Does this still keep the disc in the right place to work with the brake caliper?
Simple answer is yes, because I have that setup. Just a couple of caps that sit on the hub. I think that you also need a spacer to move the disc out but easy to come by.
If no one gives a more helpful answer I’ll dig out the details, but as I managed to do it, it’s not hard.
Pretty sure it's this you need, if you can find it in stock.
http://www.chainreactioncycles.com/mobile/hope-fatsno-15x150mm-front-conversion-kit/rp-prod136931
Edit all options available from bike24
https://www.bike24.com/p2109562.html
there is also something called a snowpack caliper adaptor which pushes the caliper over 5mm,
Thank you gents, that seems clear enough.
Now for the tricky question of a) do I really want to do this
and b) is the extra £s for a Mastodon likely to be worth it over a Bluto..?
Mastodons seem thin on the ground, I'm almost thinking the 120 is extinct...
Similar thoughts here. I've only just built mine rigid and love it, I'm used to a rigid bike but I can see how awesome it would be with a fork.
IF i do it I'll likely go Bluto because of my lighter riding style, 100x32mm is fine for me & doesn't mess with geometry too much, it's cheaper and 400g lighter.
I've found a bluto quite twangy with the sort of grip that fat tyres can generate. Also blew air past the seals a couple of times riding rougher stuff in Wales at speed (although resetting the pressures with a shock pump fixed it).
In the process of fitting a Boosted Fox 34 with 4" tyres to try and get a bit more precision and robustness out front.
If Mojo hadn't sold up I'd probably have gone for a Mastodon in the near future to replace the Bluto.