[Closed] Rockshox Upside Down Carbon Rigid Teaser Pic?

I think it's a SID replacement. Ultra light weight carbon crown with the strength and weight advantages of a USD fork.

Probably works best with a spike-equipped 800mm-long reverb. 😈

LoCo - Member

However referencing by eye the stantion diameter to lower steerer tube diameter the stantion (actual) slider, from the picture above would be about 38mm, which bring into question weight etc.
This is starting to annoy me know

shouldn't it read
"The Re-release of RS-1"
I thought their first ever fork was the RS-1

read it in order...

Who cares? Ditto re road. Who cares? The majority of consumers/users of bikes don't race under UCI regs, so can use what they want. A USD road/cross fork would be lovely on a tracks and trails CX bike.

Even if it is a 29er xc fork, if it's a light weight SID then why not stick it on a disc CX bike. It'd be more down to makers of CX bikes to produce a frame that worked well with a sus fork a2c.

.

A suspension fork equipped cx bike? So kinda like a mountain bike then.

You could also put wider, straighter bars on it, oh and fatter tyres too.

Well the 'Everything Changes' image just shows it on a 'normal' hardtail mountain bike.

I'm interested to see what they've done at the axle end.

Crown area on it looks very wide to be a CX or a road fork.

I think it's a SID replacement. Ultra light weight carbon crown with the strength and weight advantages of a USD fork.

That would be awesome. The RAC was meant to exist in a silly lightweight XC variant too, but they never managed it.

How much though? I'm guessing mucho ££.

I reckon they missed a trick and should have released all the details today as it is the first day of spring.

I reckon at the bottom of the fork is going to be a new wheel size, the new 6" format.

Who cares? Ditto re road. Who cares? The majority of consumers/users of bikes don't race under UCI regs, so can use what they want. A USD road/cross fork would be lovely on a tracks and trails CX bike.

You do realise that XC mountainbikes and CX bikes only exist because the UCI says they're different? CX bikes are banned from having flat bars and tyres wider than thirtysomething-mm, XC bikes are banned from having drop bars.

Given a totaly free choice I reckon CX would be more like a cross frame is now, just longer with flat bars.

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Pinkbike making the same conclusions as AlexSimons pic

Is that 20mm? And are the hub flanges different sizes or is it a weird perspective
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Read from the bottom up:
"[i]In 1989 RockShox turned the world of mountain biking upside down, with the release of RS-1. History has a way of repeating itself.[/i]"

Does that say 'predictive steering' on the hub?

Does that say 'predictive steering' on the hub?

God knows you couldn't blame Rockshox for that, they had the best through-axle format so far and pushed it as hard as they can then had to switch over to something that's worse in every way because of OEM pressure... So you couldn't really blame them for offering a 650b axle out of spite.

when are they going to shut the **** up and just take my money!

that brake post looks a bit flexy!

Cool, looking forward to getting my hands on a set of these and to find out how flexy they are...

Why are upside down forks better than 'normal' ones which seem to be the norm? Or is it change for changes sake? I would have thought the stanchions are much more likely to get damaged down there and more chance of crap getting in the seals?

Unsprung mass innit

I think the main advantages are less unsprung weight and gravity helping lubricate the seals.

Why are upside down forks better than 'normal' ones which seem to be the norm? Or is it change for changes sake? I would have thought the stanchions are much more likely to get damaged down there and more chance of crap getting in the seals?

They're better because the oil sit's on the seals and bushings where it's needed, not sloshing about at the bottom of the 'lowers'. The seals actualy get less dirt as it just falls away from them, and any that does stick is wiped off by the seal and falls away, rather than accumulating by the brace/arch. Stanchion damage is usualy mitigated by plastic covers covering all but the back.

Unsprung mass innit

I guess they could be theoretically stiffer as well, the carbon crown on rock shock sids is by their own admission 10-15" less rigid than the aluminium version. By having the fatter outer tubes at the top they should be able to make a stiffer in all one peice unit. (this is complete guesswork of course I have no actually knowledge of these manufacturing and design processes)

To stiffen an USD fork you need some sort of arch, like Emerald use on the EVO. Without they are torsionally weak, unless of course you have a huge stiff axle with a massive clamping interface, but even then they won't be stiffer than the same normal fork.

they won't be stiffer than the same normal fork

edit: oh and the stanchions are still perfect. The guards do a great job.
That's why these interest me. I think upside-down forks are under-appreciated.

[i]Unsprung mass innit[/i]

It's 'cos they look more like motorbike forks, surely?

Muchos short travel there.

BMX forks innit blad...

Actually im saying its above the SID

Can't see anywhere to put guards, which is a bit odd

To stiffen an USD fork you need some sort of arch, like Emerald use on the EVO. Without they are torsionally weak, unless of course you have a huge stiff axle with a massive clamping interface, but even then they won't be stiffer than the same normal fork.

i had Marzocchi RACs felt stiff enough to me - I'm sure there was stories knocking about at the time that they were too stiff and put load through the frame?

Brant had some as well around the same time IIRC?

I reckon teasers ahead of 1st April 😉

Brant had some as well around the same time IIRC?

[url=

View this post on Instagram

cat welcomes RS-1[/url]

thought so 😀

Ok, so we've run out of wheel sizes and the marketing guys have decided that we now all need upside down forks - brilliant! The formula seems to be; think of something that has been like that for as long as you can remember, flip it on its head and convince the world we've been doing it wrong all along.

So what's predictive steering then? Some sort of movement or spring in the axle/
bearings?

Ooh, I was wrong then. Looks interesting.

typical, someone i know apparently has a set,and has for a while, but can't say anything....

Also has the Shimano 2016 catalogue... also can't say anything about that either.

There's a guy works down the chip shop who swears he's Elvis,but but I can't say anything about it.

There's a guy works down the chip shop who swears he's Elvis,but but I can't say anything about it.

Not this time, the guy designs the bikes for a well known manufacturer.

How much travel, any ideas?

How much travel, any ideas?

80mm by the looks of the latest pic.

Gotta say they look cool as ****

80mm? Which picture. I'd be very surprised if it was less than 120mm.

We've not seen a picture of the full stantions, so no way of telling. Agree that 80 is unlikely, although I'd not rule out 100 if it's a SID replacement.

I think the pic he's referring to is just my photoshop mash-up that someone's stuck the last photo on the end of.
They could have made the stanchions any length they wanted.
http://www.vitalmtb.com/product/feature/Sneak-Peek-Inverted-RockShox-RS-1-Fork,230?utm_source=www.cyclingprss.co.uk&utm_medium=referral&utm_campaign=www.cyclingprss.co.uk

Well the 'Everything Changes' image just shows it on a 'normal' hardtail mountain bike.

(oooooh....Get me Girlfriend!)

[url= http://www.bikerumor.com/2014/03/21/more-on-the-new-rockshox-rs-1/#comments ]BR[/url] suggesting it's an XC race fork to sit above the SID, with a 110x15mm axle.

RS have just uploaded a full shot. Looks to be ~100mm and I'm hoping it's not some proprietary axle.

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I'm hoping it's not some proprietary axle.

It looks like we've maybe /hopefully reached the point where carbon is allowing RS and the like to make up for the potential flex of usd forks by having a stiff and light carbon upper along with 20mm axle to hold things together.

I'm hoping it's not some proprietary axle.
Pretty sure it is. Something to help resist the twist in usd designs. 100mm widths are a bit old-roadie anyway, then the flanges moved in for discs, then wheels got bigger, so I'd like to see wider hubs on MTBs.

Like Doug Bradbury did. On Manitou rigid forks. In about 1990.
Road bike standards. Crackers.

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looks eye-wateringly expensive!

I'm hoping it's not some proprietary axle.

Brand new reverse threaded 22.4mm backwards offset axle?

The hub is 110x15mm.

Still have no idea what predictive steering is.

GB

Gee - have you got more on that apart from the bloke stating it as fact in the Bikerumor comments I linked to above?

who cares what the axle is? hope/dt/everyone will (apart from chris king - where my xx1 freehub?) will have a conversion for current hubs available within days

hang on, its pictured with the hub, will come with a hub, so what about the axle says, will require a rebuild thats it

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A Hans Dampf doesn't fit with it being a short travel XC race fork...

Smallish rotors. Xc pedals. 1x11.

Screaming 120ish to 140ish travel trail fork so far.

What size wheels that?

[quote=dirtyrider ]What size wheels that?

I'll tell you in a minute, just as soon as I've killed a kitten.

I like the look of that, nothing to interfere with the down tube. Wireless lockout?

Looks like a camber frame? 120mm probably? Doesn't look beefy enough for a 140mm 9er fork.

Aracer, genuinely laughing at that! And now trying to explain why to Mrs CFH.

Some of us are still running 120mm travel upside down forks on our trail bikes from the last time they were the next big thing, c.2002! Must admit that one above is likely to be a shade lighter than my shivers though.

If I was right about the 32mm stanchion, then those stanchions are exactly 100mm long.

I based the 32mm stanchion on the very top of the steerer being 31.75mm (1.125")

Knowing what state the guards are like on mine, I'm not sure I'd want USD forks without.

Would be amusing if RS went all 20mm Axel after everyone converted to 15mm cod we were told that was stiff enough

Of course if so it's even more like the marzocchi RAC - how stiff were they ?, it'd loved to have owned one back in the day

solves stock control, how complicated would it be to create a 26/650b/29 fork from that starting point. Far easier than having to cast a variety of lowers.

Could there perhaps be a 25mm axle for this? Seeing it on a Spesh makes me wonder.......

[img] ?1395505034[/img]

I am sure someone can figure out a bit more based on the tapered steerer.

It's an XC race fork.

Pointless from a performance perspective but looks cool I guess.

It's an XC race fork.

Possibly; look at the spec of the bike pictures above though. Small (?160mm) rotor fits with that, but the tyre choice doesn't.

Scoops of mud clearance but nowhere to run a bender fender. I'll never be able to afford one anyway.