Here is Gee Atherton's silver medal winning Hardline machine. Atherton Bikes prototype 9.0, just think about that. One season, nine varieties of bike. Consider the production concept of these machines and the scope for advancing geometry is huge. This can only be a good thing for bike progression. While I'm unsure of the specific sizing or geometry of this bike, his last Trek was an XL 29er, so it's interesting to see that Gee is playing with a mullet, 29/27.5" wheel combo. Interesting also that team mate Charlie Hatton is on a 29" front and rear, despite being shorter than Gee.
Gee weighs 83kg and today he was running a 525lb spring on his shock and normally has 84psi in his fork. He runs a 36t chainring with a seven-speed DH specific cassette. His go to tire pressure is 23psi up front and 25psi out back, and that may be be increased slightly here, depending on conditions. Gee runs 2.4" Continental Der Kaiser tires.
Seriously tho, if a tube breaks theres probably a lot more problems with other parts of the frame that aren't seen.
What I would do for a ~130mm 29er trail bike from Robot. Sigh. Too bad real life got in the way. Might have to go Saturn 14 instead.
This is the custom welder that Sick Bikes tried to use. They are cheap, heavy, and have poor quality control (people complain about misaligned frames and parts that don't fit) but STEEL! And custom geometry/travel for under $600. If you want something higher quality and lighter, you can get a cusotm Starling for 6 times as much.
Hum.... better buy myself a UK made Stanton Switch9er FS instead, to get something real without any glue.
True story- I was in an engineering/business competition against the guy who started fiber fix in college. Neither of us won, but his idea is now a full fledge business while my ski helmet with removable headphones is still just a crappy idea....
On behalf of Canadians, "sorry".
Nevertheless, what`s the difference between Canada and USA: the flag and the number of guns per persons???
Conti has no 29er DH tire....they planed one for this year....but it never arrived.
What pressure and rims are you running? I'm on 25 or 30mm internal width rims and run around 25psi (i weigh ~80kg)
MAgic Marys are to be had for so cheap overseas any other great for WBP is foolish.
Google says Gee is 85kg @1.85m (6ft1, not 6ft2).
Wiki has Gee at 190cm (6ft3) and 85kg.
So... Gee is somewhere between 185 and 190cm tall and 85kg. maybe!
There are a bunch of the Fox Dialed 2019 videos where Jordi and the guys talk about how at a lot of the events racers are changing their settings as they get faster in practice. Also since most of them aren't going 100% in the practice or even the timed "training" that those settings might not work for them on the race run when they are going 100%.
Guy is going to need all the volume spacers to get his suspension running best for himself.
Would love a 6” trail frame
You do get the 'squirmy' feeling when you first start using it, but you get used to it and then forget about it all together because you're railing the off camber loose/gloopy stuff without problem.
Had twin punctures once, but the inner tyre system still allowed me to complete DH run and get 3rd on podium.
- body weight
- tyre casing
- rim width
- tyre inserts
- the fact that no two pumps or pressure gauges will ever give the same readings and older/shittier ones can be miles off
And of course one man's (or woman's) intolerably squirmy may be another's comfortably muted.
I'm 90 kg and run 21-23 on the front (sometimes lower), and 23-25 on the back in Magic Mary's on the DH bike, 23 and 25 feels pretty solid on fast tracks and I have to then drop it if it's a more technical or rooty track. This is with a topeak digital pressure gauge.
30-35 I'd consider almost unrideable for DH.
I run standard EXO casings, which will need more pressure than a DD or DH casing to hold up. I'm also heavy at like 95kg - so I go for approx 28 rear 26 front. In the wet I might drop it a bit.
35 is seriously high.
@mcozzy Nope, running the DH.
@bigtim Yes, who doesn't!
@justanotherusername Magic Mary EVO, Super Gravity, TLE, Vert Star 3, feels right, not too much bounce and I'm on an aggressive hardtail.
@n734535: I weigh 86kg, I have a good modern track pump, don't use tire inserts, the rest is above. By squirmy I mean losing control of the back end on hardpack.
@GrandMasterOrge I rode with this pressure at Antur Stiniog 2 months ago...
Genuinely interested in understanding this so appreciate the feedback from y'all.
Sidewall thickness plays a part here too.
My buddy Dave Lohner came up with a sag trick for fat tires also. Sit on the inflated tire and bounce a little, looking for wrinkles on bottom. Great way to gauge your pressure without a gauge!
bouncy ...? yea i adapted to it duh
Google it if you don’t believe me - tyre setup is a function of variables, pressure is chosen as a result of the type of tyre chosen.
The above reply wasn't for you
You're right - what I said has actually been disproven in many conditions. I've also studied Hysteretic Flex and Suspension Losses and there are good studies published about it. A rock-hard tire can actually slow you down. As a timed racer on the same course, on tubeless DH-casing tires, 24psi generally makes me go faster than 16psi unless other factors (traction requirements, excessive flex) come into play.
I have the Magic Mary EVO, Super Gravity,
both front and rear with 25mm inner rims.
In park I ride pretty much all the time with around 20 psi without using inserts and tubeless.
Never had a problem. These tires are amazing, except hardpack.
Do you have the problems more on the front or the rear tire?
Comes down to personal preference and how you ride.
Specifically, I usually ride from my house in Squamish to the trailhead at 24/28 f/r and drop to 18/22 or so before I begin descending. Before the cush core I didn't dare run less than 25 in the rear though. In the bike park I'll run more pressure because the feeling of folding my bead over in a high speed corner makes my stomach turn, it terrifies me hahaha.
> Do you really like eating pies?
This needs more up-votes. It's not even being mean; tires squirm worse for heavier riders.
Not to detract from 2nd at Hardline of course