Video: Full 29er vs Mullet, The Syndicate Debates

 Like skirt lenghts - they go up and down with fashion. You can only make a mini skirt so mini before it's a belt, so where do you go with that? You make them longer again.

 Where Dougie?

 Nah, it's full suspension BMXs.

 Couple of years to go yet. But yep. Big tyres, modern geo, quick accelerating fun bikes for your local woods. Then 27.5 will be as dead as it is redundant. 29ers for racing, xc and tall lads, 26er for chucking around.

 Imagine your 26" bike with a 27.5" front wheel...

 @n1ck: imagine your 26“ bike with a 24“ rear wheel. Would probably be a big hit in the freeride community.

 @Upduro: wrong direction. But I see what you did there.

 @n1ck: Aye, I did think about that But its agile enough for my skills.

 Really? I could instantly tell a very noticeable difference in a few different metrics.

 Did yo girl say the same thing

 Your logic makes sense. I've only tried 29" bike with 27.5 rear. (Trek Slash). I run carbon wheels which are great, but occasionally break. I bought an aluminum rear 27.5 to run when waiting for warranty replacement and that's been a fun experiment to switch to the mullet setup and back (a couple times...)

I'm 187cm (close to 6'2") and am on size Large. I've also owned the XL in the same bike and tho it fits it's a touch large for my preference. The XL might be more stable but it definitely sacrificed playfulness. It's already a very long and stable bike.
For me, the L frame with both 29 wheels is the way to go. The mullet setup (on size L, didn't try in XL) didn't offer much advantage in cornering but definitely sacrificed speed in the plow scenarios.

That said, I'd like a park/shuttle bike and I'm considering a Session. Comes in 27.5 aluminum or 29" carbon. I'm definitely playing with the thought of an XL 27.5 Session aluminum and putting a 29 up front. My question I think at that point is how much travel up front to not raise and slacken it too much.

 BB's are quite low already so the safe bet would be to put a 29'' front wheel on a 27.5'' frame. And if u feel like the BB ends up to high, u can just change your shock setup.

 I wouldn't bump the travel up, your stack would increase and head angle slacken to what I would guess is no bueno. Theres an informative podcast with timing somewhere I think with the Cotic guys? Look through InsideLine or Downtime.

 I tried a 27.5 wheel on a kona process 153 29 and I didn't really notice a significant difference with bb height. I think it works fine to just let the bb drop a bit, just make sure you have a bash guard. It felt really good with the smaller wheel.

 @Jimmy0: why would the stack matter, unless you were already slammed at the stem?

 27.5 on back of a 29er is better, as you're dropping the rear by only the change in radius and you can compensate this BB drop with longer fork (slacker), flip chip to raise BB and/or offset bushings. Just watch out for your reach measurement dropping if you overfork the bike and do nothing else!

If you put a 29er on the front of a 27.5 bike, you need a new fork with longer axle:crown, plus the change in radius of your tyre, so the front will be super high. The problem then is that you might struggle to drop the BB: less travel (no thanks!). Offset bushings might be your best option, but probably won't go far enough.

 I liked how the hipsters did it on bike magazine when they built a mullet scout. Seemed to make sense and according to them worked pretty well too.....

 @Jimmy0 @tobiusmaximum Was just going to say, Cy Turner from Cotic goes into this quite a bit, his testing thoughts and differences. It's not immediately obvious, but I think he found the dynamic sag and balance was better just throwing a 27.5 rear on a frame built around 29 wheels, vs throwing a 29 fork and wheel on a 27.5 frame. With the 27.5 frame, even with reducing the travel on the fork 20mm to compensate for the increased stack height from a 29 fork, the fork rode higher in its travel (didn't sag as many mm's) for an equivalent sag percentage and therefore didn't feel quite as balanced.

TLDR Cy thought if you were to do a mullet build, start with a 29er. It's also been a while since I've listened to that downtime episode, so please forgive me if I forgot something.

 I put a 29er fork and wheel on my 27.5 dh bike and the headangle only changed 0.5° so I think the bb didn't go up a lot either so that worked really well.

 I experimented with a mullet by putting a 27.5 wheel on the back of a 29er. It is good, but I think the BB was a little too low. To me since I don't like pedal strikes, I'd rather put a 29 wheel on a 27.5 because I think the geo numbers are better, but you have to get a new fork which is expensive.

 @nathan999x: I did the same and did get some more pedal strikes but felt like I could initiate turns quicker and exit out faster too, but this was just how I felt- not timed.

 Did it on a SC Hightower 2018 XL, bumped it up to 150mm travel up front, and was able to run a 200x57 shock instead of a 200x51 because of the increased clearence around the rear tire/seat tube. It was well fun, and worked really well in the steeps. Can recommend.

 If you have still a Super 8 then you hold onto it till it's pried from your cold dead fingers.

 Has he left Syndicate?

 Looks like the tires they made for Peatys bike for his last race in Vallnord

 yeah! where the hell do we get'em?