I've had a few months riding the stock sb165 and it felt great. I've only had a 4-5 rides as a 29er 170mm mullet and so I've been crushing my PRs. I'm still setting up the cockpit and saddle. right now I have a 5mm spacer under the 40mm stem and cornering feels great. tho it could be buyers confirmation and placebo.
I've had a few months riding the stock sb165 and it felt great. I've only had a 4-5 rides as a 29er 170mm mullet and so I've been crushing my PRs. I'm still setting up the cockpit and saddle. right now I have a 5mm spacer under the 40mm stem and cornering feels great. tho it could be buyers confirmation and placebo.
I considered a 170mm air shaft as I have one for my Fox 36, but decided against it as I wanted a similar seattube angle as to what I had on my Transition Sentinel.
Well if you are going to 29 front and only dropping 10mm on your fork then no doubt it will plow better. I think most drop the fork to 160 to get closer to the stock geo. I don't know if I would like my bike with shorter reach and higher bb, I'd probably want to up frame size and push the saddle forwards to negate the slacker seat tube. I just fitted a Smashpot and 2.8 plus tyre to the front of my 27.5 fork though and I have to say it is super cushy and plows through anything anyway so don't see a need to have even more plowability.
If I went 29 front I'd probably get a dual crown fork to get more travel with a smaller axle to crown and not mess up the geo, A dual crown probably weighs the same as my Smashpotted ZEB and I've felt no negatives to the increased weight up front. It's only noticeable when lifting the bike above my head with one arm XD. But I love my Smashpot, don't know if a 180mm dual crown can beat a coil up front, quite considerable gains to plushness and support running the Smashpot over air, probably the best bang for buck investment you can make on your bike imo.
Spent nearly five hours in the saddle yesterday and it's still a beast on the descents in mullet setup. Easy to manual and whip around while in the air. I find it to be an absolute blast descending and climbing it handles it all well. The downhill only trails are still covered in snow and not rideable where I live presently, but from the jumpline I can ride presently and everything else, it handles it excellently.
austenselk... did you try a 27.5 170 setup yet? I also feel that my 29 160 setup washes out a bit too often in the front (DHRII 2.4). And I must admit... that front tire is way out there... kind of a "chopper" feel, but it trucks anything in the path. Im really close to trying a 27.5 170 to steepen the HTA a bit more than stock and force some natural weight bias up front.
Just drop bar rise and spacer height.. Playing around with different heights and bar rises on my sb165 really shown me what a massive difference it makes, not only to front wheel grip and handling but also supension performance... My 760mm wide15mm rise carbon bar feels massively different to my 800mm wide 38mm rise alloy bar... The suspension feels so much plusher with the lower bars if feels like a different fork. Weight balance front and rear is extrwmely important, more important than fancy shocks and Kashima. Play around with bar heights and get it right as it makes a glhuge difference to the feel of the bike more than almost anything else.
im currently testing a 40mm i9 stem, with 10mm of spacers below, and a 30 or 35mm rise oneup bar on my sb165 with a 29 170mm fork. so far everything seems fine. i was running 5mm of spacers below for a few rides and i felt a tiny bit forwards. i'll swap back to 5mm spacer or 0 spacers afterwards to see if i can really tell the difference
Thinking of getting some 29 lower legs and a 29 rim and relacing my wheel to give this a go but is it worth the sacrifice of losing 20mm travel? Doesn't a 180mm fork ran slightly softer with more sag and 27.5 feel just as plush as a 29 160mm that needs to be run with less sag?