[Mtns Are Fun]

Whats up Mtbr's!!! I had posted a thread several months ago regarding this same issue ( with zero replies after multiple bumps I gave up) so we are going to try this again =p.
ISSUE = LOCKOUT ON RST DUECE fork STUCK tried everything.
I have a 2011 Cannondale Trail SL4, the bike just visited the local shop to see about fixing my front forks stuck lockout mechanism but they were absolutely unable to help me or fix the issue also weren't able to help me find a replacement fork. So i took the bike to another reputable shop they told me the same thing " You need to locate another rst duece fork and we will install it for you". I have searched the internet high and low for a identical replacement with zero luck. At this point guys i really just need to find a replacement ( maybe a fox or something ?) to swap out with this one. I would really like to replace the RST Duece with something higher end ( mainly because i CAN NOT find a 26in rst duece suspension ANYWHERE ) something by fox would be great, if im going to replace this I might as well purchase something high quality, Can a fox fork fit this bike? I had no luck searching for a direct replacement from fox.

Sorry for the Short story guys just wanted to be thorough really want to get back on the trail it sucks with a stuck lockout = / complete rigid hurts me haha.


Mtnsrfun

 

[watts888]

Conversion headset will allow you to use a tapered fork,

or
RST Deuce MTB Suspension Fork 140mm 15QR 1.5in Gloss Black | Bikewagon

 

[MOJO K]

So this is a 1.5 straight head tube? If so I have a Hope reducer headset (1.5 to 1 1/8 top and bottom). I also have a 100mm Reba solo air in mint condition with 7" of steer-tube I could sell you. The headset is free, pay it forward style...just PM and address.

 

[Mtns Are Fun]

Thank you both for the uber quick replies really appreciate the swiftness =p. Watts888, that 140mm Duece would be a direct bolt on right? no adapters etc?

So this is a 1.5 straight head tube? If so I have a Hope reducer headset (1.5 to 1 1/8 top and bottom). I also have a 100mm Reba solo air in mint condition with 7" of steer-tube I could sell you. The headset is free, pay it forward style...just PM and address.

Will pm you shortly to possibly discuss this some more ( pay it forward is awesome much appreciated!!) maybe we can figure something out ( wish I had some parts to barter with = p ).

 

[watts888]

Not sure if it's a direct bolt on. Should be, but cannondale does some funky stuff sometimes. Honestly, I'd look at a better fork and a reducer headset. RST is acceptable to start with, but kind of like the low end suntour forks, it's not something you'd "upgrade" to unless you just wanted to keep mediocre performance with plans on replacing it in a year.

 

[Mtns Are Fun]

Not sure if it's a direct bolt on. Should be, but cannondale does some funky stuff sometimes. Honestly, I'd look at a better fork and a reducer headset. RST is acceptable to start with, but kind of like the low end suntour forks, it's not something you'd "upgrade" to unless you just wanted to keep mediocre performance with plans on replacing it in a year.

i see, so looking into a 1.5 to 1 1/8 reducer would be my best bet ? May go with Fox unit not 100% sure though.

Mtns

EDIT: this bike will be ridden roughly 7-10 hard trail miles per day during the summer just had the front / rear derailleurs replaced and the rear casset + all new brembo brake pads new brake cables etc.

 

[watts888]

yea, you ride this thing hard enough to justify a good fork. Fox, rockshox reba, manitou. Lots of options. The Reba listed above is a good fork (in general, don't know about this specific fork), but have to make sure it has long enough steer tube for your frame/stem and that the axle style is good (QR vs. 15TA)

Should be plenty of MTBR posts about people converting cannondale headsets. Just search, and you'll find some.

 

[MOJO K]

Couldn't download this to PM...this is the Reba

 

[Flamingtaco]

Hard to pass up free, but If you go with the headset adaptor, you will have to use a 1-1/8" stem, cap, and spacers, so not a free fix if you don't have those laying around.

If you want to stick with the stem, caps, and spacers you have, you do this:

That's a re-useable adapter I made from aluminum tubing. I've got some left over if you'd like one made.

I picked up a 2014 QR15 Manitou Minute Expert fork for $200 from CRC in December to replace the failing RST on my 2010 F5. The fork is set to 120mm, and has an axle to crown height of 498mm. This is just under Cannondale's max of 500mm ride height for the Trail SL frame. Stay under this limit not just for the warranty... The steering becomes less crisp, and your hand and butt comes up and back, which raises the center of gravity and moves it rearward. I've found the bike is more prone to lifting climbs now. Probably doesn't help that the fork is 1/2 Lb lighter than the Deuce, but I can let that issue slide

The cheapest Minute now is the LTD at $340. Also the Marvel Comp if you're a regular weight adult and don't intend to ride DJ or hit massive drops.

If you are on a tight budget, the RockShox Recon Silver TK and Manitou Match are about $200. The Rockshox XC28 TK is closer to $100, but it's more of a light duty trail fork or extreme duty CX fork. I put that on one of my boy's bikes. He weighs 160 and rides trail at most once a month, and not aggressively. I've loaned the bike out a handful of times to adults, and the consensus each time has been that they could use a sturdier fork.

There were some RST Deuce's available for about $100 last year, but they were all 140 or 160mm, watch out for that if you come across any.

 

[Blue Flame Special]

It astounds me how unhelpful or incompetent (it's one of the two.. possibly both) some bike shops can be.

That's some good info above from Flamingtaco. I'd agree it's a good time for an upgrade. I found the RST Deuce to be an ok fork, but as a coil fork its on the heavier side.

I replaced mine (on my SL4) with a Manitou Marvel which has been great.
As above, it's all about how much you want to spend.

If you end up going with a tapered fork I should be able to give you the info for exactly what headset you need.

 

[Mtns Are Fun]

Sorry I have been AWALL the past several days guys i just sat down and read the reply's here there is so much good info im having a little issue processing all of it. I Would really like to Get a fox shock if possible ( have found a couple Float models on ebay near $300 That look promising but after hours of reading im still not sure on axel type get ta pared Vs non tapered etc). Not really looking to spend a whole lot more than $300 on this I can budge a little bit though, this may sound like one of those feed me free info questions but could someone possibly link / point out the spacers /stem / other stuff i would need to do this. I was looking at headset adapters etc and came accross the following adapter (https://www.universalcycles.com/shopping/product_details.php?id=12471 ) Would that adapter work with the following fox shock ? FOX SHOCK = New 2015 Fox 32 Float Fork ctd 26" 100mm 9mm Taper $525 Retail | eBay

Would ultimately like to go with the linked items if possible ( at least the forks ) would be open to other brands of forks as well just steer me in the right direction guys and gals!

If at all possible i would like to avoid getting a different stem and spacers etc. But Will if its absolutely REQUIRED.

Thanks for the guidance / great info guys !!!

Mtns Are Fun

EDIT: After further research I have came to the conclusion that I am running a 15mm quick release style axle would like to avoid having to get a stem and spacers ....i guess the forks i linked above won't work what about the following -------Rock Shox Reba RL 26" Tapered QR Dual Air MTB Bike Suspension Fork Remote New | eBay Dosnt say the axle diameter says " works with quick release only" im guessing its compatible with my QR type axles ?

 

[Blue Flame Special]

Ok, are the wheels on your bike the stock ones that came with it? If so those are the Maddux DC3.0s or something like that right?

If that's the case, the front wheel will be a 9mm quick release and not 15mm qr..
again, if that's right - both of the above forks will work for you.

BUT you would definitely need to replace the stem and spacers for 1 1/8 stem/spacers (you currently have 1.5 sometimes written as 1 1/2). Or alternatively use flamingtacos idea about the adaptor. I can't comment on this.

The headset would need replacing also but you may only need to replace the upper headset as the lower part of the fork steerer tube is still 1.5. I MAY BE WRONG ON THAT PART so would be good to hear some opinions from others in this thread about that.

I know for a fact that the upper headset would need to be replaced - this would work:
Cane Creek (40 series) ZS49 (28.6 step down) Top

https://www.bike24.com/p260996.html

May as well get a good quality headset like the above if you're putting quality forks on your bike.

The headset adapter you linked to I don't think will work.. Cannondale have some odd head tube diameters on some frames i.e. those that take a headshock. Your headtube is a true 1.5 - thats all you need to know.

I can also give you the right lower headset model if necessary.

In regard to the stem and spacers you'll simply need some 1 1/8 spacers (like for like replacement with your current 1.5 ones if you're happy with the current height of the bars) and a 1 1/8 STEERER diameter stem with a 31.8 BAR diameter (most modern bars are 31.8 diameter and I'm assuming your cannondale ones will be.

Questions?

 

[Mtns Are Fun]

Ok, are the wheels on your bike the stock ones that came with it? If so those are the Maddux DC3.0s or something like that right?

If that's the case, the front wheel will be a 9mm quick release and not 15mm qr..
again, if that's right - both of the above forks will work for you.

BUT you would definitely need to replace the stem and spacers for 1 1/8 stem/spacers (you currently have 1.5 sometimes written as 1 1/2). Or alternatively use flamingtacos idea about the adaptor. I can't comment on this.

The headset would need replacing also but you may only need to replace the upper headset as the lower part of the fork steerer tube is still 1.5. I MAY BE WRONG ON THAT PART so would be good to hear some opinions from others in this thread about that.

I know for a fact that the upper headset would need to be replaced - this would work:
Cane Creek (40 series) ZS49 (28.6 step down) Top

https://www.bike24.com/p260996.html

May as well get a good quality headset like the above if you're putting quality forks on your bike.

The headset adapter you linked to I don't think will work.. Cannondale have some odd head tube diameters on some frames i.e. those that take a headshock. Your headtube is a true 1.5 - thats all you need to know.

I can also give you the right lower headset model if necessary.

In regard to the stem and spacers you'll simply need some 1 1/8 spacers (like for like replacement with your current 1.5 ones if you're happy with the current height of the bars) and a 1 1/8 STEERER diameter stem with a 31.8 BAR diameter (most modern bars are 31.8 diameter and I'm assuming your cannondale ones will be.

Questions?

Thanks for the info!! Will Look into the headset adapters, still need spacers and a stem + fork if i am correct. Was hoping i wouldn't have to buy a stem but at this point i might as well replace it anyways going to have to go take a quick peek at the bar diameter etc before i decide on a stem. As for the wheel axle deal, i have still not been able to actually determine the diameter of the axle (weather or not the axle is a 9mm QR or 15mm QR TA etc) I will try and get some pics for you guys to take a look at in terms of helping me figure out my axle style (have viewed forum threads regarding the different types of axles still no luck).

Thanks again for all the help gents!!

--MTNS ARE FUN--

 

[Mtns Are Fun]

will post some pics below to see if we can figure out what diameter axle i have could be a 9mm i can honestly not tell. Might Also Do bars, anyone have stem suggestions ( was browsing JensonUSA for some not sure on clamp size etc)?

Cheers!!

MTNS

PICS

 

[Mtns Are Fun]

BUMP! Any thoughts guys?

 

[watts888]

Those are simple QR hubs. 9mm axle in front, 10mm axle in rear. If you're looking at a fork that says anything about 15mm thru axle or 15TA, look elsewhere. For the stem, you'll need one that uses a 1 1/8" steer tube clamp. The handlebar clamp diameter will be dependent on your current handlebar, or if you buy a new handlebar, get the matching handlebar clamp diameter. I'd make a good bet your current handlebar uses a 31.8mm clamp diameter

 

[Mtns Are Fun]

Those are simple QR hubs. 9mm axle in front, 10mm axle in rear. If you're looking at a fork that says anything about 15mm thru axle or 15TA, look elsewhere. For the stem, you'll need one that uses a 1 1/8" steer tube clamp. The handlebar clamp diameter will be dependent on your current handlebar, or if you buy a new handlebar, get the matching handlebar clamp diameter. I'd make a good bet your current handlebar uses a 31.8mm clamp diameter

Thanks a bunch for that helpful information, this is getting to be REALLY expensive ( still unsure on EXACTLY what type of headset mods im going to need to do was considering installing the following Cane Creek 110 ZS49 Conversion Headset > Components > Headsets > Complete Headsets | Jenson USA

Would i be able to use a strait or tapered steer tube type fork with the cane creek 110 zs49? Could I get away with just purchasing the top headset from cane creek vs the whole $130 deal? Still Trying to decide on a stem and forks ( considering a rockshox reba unit with remote lockout, or a 100mm fox 32 float evo if it will fit.) All of this is slightly confusing still but i think im starting to get it.

Thanks for the help gents!!!

MTNS

EDIT: ALSO worried about what type of cane creek spacers I will need If I am able to use that headset on my bike.

 

[Blue Flame Special]

Yep, those are quick release hubs. As per my last post either of those forks you linked to will work BUT a couple of things to keep in mind..

How big is your frame? The Reba's have a cut down steerer. It's still pretty long though (215mm) so should be ok unless you're on a massive frame/like your bars super high.

It doesn't say what brake mount the FOX fork takes.. there are two: IS (industry standard) and Post mount.
I think your RST has a post mount so if the fox is the same - all good. If not, you'd need an adaptor (IS to post mount). These are pretty cheap and easy to get but just wanted to make you aware.

As the guy above says if you've got the Cannondale handlebar, I'll bet the clamp diameter is 31.8.

In regard to the stem, if you're happy with the position/height of your bars you'll want a stem that is approx the same length and rise of your current 1.5 stem - as an example 90mm stem with 8 degree rise.
This also goes for the spacers - again as an example, you may have 8mm worth of spacers under the stem and 4mm on top. You'd need to get the same amount again (12mm worth) or actually a few more as the stem body of a 1 1/8 might be slightly smaller than that of a 1.5.

So you need to measure your spacers stack height to determine what you need (and then get a few more like I said just in case).

With the headset - I'd be inclined to take up Mojo K's awesome offer of the free Hope unit. You'll just need the top part though. Another BUT though, it needs to be a Semi integrated/Zero stack top (NUMBER 4) - this one, on the far right at the very top.

http://www.roteccycles.co.uk/ekmps/...uk/ekmps/shops/rotec/images/hope-conventional-headset-1-1-8-black-[2]-588-p.jpg

Nothings easy right!

 

[Blue Flame Special]

Just read your above post.. don't bother with the Cane Creek 110 stuff.. it's their premium range. Very nice but unecessary. The 40 series is fine (correct top headset listed in one of my posts above) or alternately get a Hope top unit (NUMBER 4 in their pick n mix range). Both cheaper options but still excellent kit.

Would be even cheaper if Mojo K has the correct Hope one for you!

Any 1 1/8 spacers should do the job - don't need to be Cane Creek.

I'm off out riding for a couple of hours, quite happy to answer any other questions when I get back.

 

[MOJO K]

Looks like mine will work.