e*thirteen XCX-STe*thirteen's XCX-ST guide is a simple single ring solution for XC and trail riders
What is it: e*thirteen's solution for those who run a single ring, but don't need the protection and weight of a full sized chain guide. The XCX-ST is a compact, seat tube mounted guide, ideal for bikes that use press-fit bottom bracket bearings, that makes use of an upper slider for chain retention - there is no lower roller or guard. This is not the guide for those who send jumps or session stunts, don't go putting this on your 7" travel play bike just because it's light as hell. But if you run a 1by setup on your XC or trail bike, and are looking for a lightweight option, this could be it. With the availability and cost of wide range, 10 speed cassettes improving all the time, a single ring user no longer has to have the legs of a National XC champion, although local terrain will always play a part in gearing choice. A reasonably fit XC rider can now seriously consider an 11-36t cassette spread combined with a single 32 tooth ring up front, and that is exactly who the XCX-ST guide is aimed at.
XCX-ST details:
- Designed for XC use
- Clamps to seat tube in place of a front derailleur
- Lightweight guide that uses only an upper slider
- Adjustable chainline via eccentric cams (50-53mm)
- Works with 32T - 44T chainrings
- Split upper slider so you don't have to break your chain
- Can replace chainring without needing to remove slider
- Captive alloy hardware
- 7075 aluminum backplate
- Available in both high and low mount clamp backplates
- 75 grams (High mount, 34.9mm shims)
- Available in black or white
- MSRP $$99.95 USD
The details: The XCX-ST is designed to be very minimalistic, but still rugged enough to stand up to proper XC riding, and even some aggressive trail or enduro use. The mounting bracket is hinged, as opposed to being a two piece design, and machined from 7075 aluminum. It's been made in such a way to minimize flex - the guide needs to be as rigid as possible - but at the same time, it's light, at only 75 grams. The polycarbonate slider is the very same as found on e*thirteen's popular LG1+ guide, and is keyed with the aluminum mounting bracket to prevent it from rotating. There has been quite a bit of detail work put into this small guide that is only apparent upon closer inspection. Not only has the mounting bracket been relieved of any unneeded material, but the XCX-ST also uses very chi-chi anodized aluminum captive hardware to keep the small bits from rolling under your work bench, never to be seen again. The slider uses a honeycomb construction for its inner half, keeping the grams to a minimum, but the strength high. Chainline is anything but standard from bike to bike, but e*thirteen has designed the XCX-ST to work well with standard 50-53mm setups by way of adjustable eccentric shims that are used between the clamp and your bike's seat tube. This system also allows you to fine tune the guide's position with no set stops in-between, a nice point considering the amount of funky bottom bracket, crankset, and ring combinations out there. As long as your chainline is nothing too out of the ordinary, the XCX-ST should mount up easily. Those with older bikes and drivetrains may want to check out the BB mounted XCX guide that fits 49mm chainlines, but you may be in for some tinkering if your bike utilizes the older 47.5mm number. The shape of the slider is designed to work with any ring size between 32 and 44 teeth - I bolted up e*thirteen's sharp looking red anodized 33t Guidering to complete the package.
The XCX-ST uses a hinged bracket (top left) that makes installation a breeze. The polycarbonate slider (top right) is the exact same as used on the LG1+, including the honeycomb construction. It is shaped to work 32 - 44 tooth chainrings and is adjusted vertically by loosening only a single bolt (bottom left)
Installation is very about as straightforward as you'd expect. The XCX-ST is available in two very different configurations: a low mount and a high mount version. This refers to the height of the slider in relation to the guide's seat tube clamp, and is important to note because many bikes are only compatible with one type. As a general rule, whatever mounting type of front derailleur your bike would use is the same mounting that the XCX-ST will use. The guide was put through its paces on my rolling testbed, a Trek Remedy, so the model tested was the high mount version. Because the slider can be split by removing the single mounting bolt, there is no need to break your chain (
although you will need to shorten it if you are going from a double or triple setup to a single ring) to install the XCX-ST. Once attached, adjusting the guide's chainline is pretty self explanatory: rotate the eccentric plastic shims until the desired position is achieved. They can be a bit hard to turn with just your fingers, although there are pin spanner holes to make it easier. There is a very fine line in regards to the perfect position; I set the angle of the slider up so that it
just clears that chain when in the largest cog, but the chain still made light contact with the guide when in the 11 tooth cog. I was never able to fully dial out the slight contact when in this gear, but I'm not in the 11 tooth cog often, and when I am, I'm not concerned with the the very small amount of drag. There will certainly be those out there who will be, but do keep in mind that it is much less friction than even the best set up chain guide could ever hope for.
An open window on the side of the slider lets mud clear quickly to keep it from packing up
Performance: In the case of the XCX-ST, less is more. The 75 gram, pocket sized guide worked well, despite it seeing more abuse on my 6" travel bike than e*thirteen probably intended. It doesn't keep chain noise to a minimum like a full sized guide would, but there is also basically zero drivetrain friction when using the XCX, something that a proper DH style guide could only dream of. Trail conditions are atrocious right now, which is the norm for our local mountains during this time of the year, but it performed well despite the slop. Not even a thick and heavy mix of mud and snow could jam things up, certainly proving that simple and well designed parts have their advantages. The slider itself never shifted once, nor did the clamp ever rotate on the seat tube, the XCX-ST was as set-and-forget as you could hope for. One caveat: back pedaling over rough terrain, something that is needed from time to time in order to get the desired pedal position, can derail the chain from the bottom 2/3rds of the ring. I never managed to have it come off the ring completely, The XCX's slider always prevented that from happening, and I always had it back on within seconds by putting in a pedal stroke, but therein lies the XCX's fly in the ointment; because it is a minimalist guide sans a lower roller, it will always be susceptible to this snag. For this reason, I wouldn't recommend the XCX-ST to those who frequent rough terrain - check out e*thirteen's LG1+ if that sounds like you. Chain guides as a group are a very specialized piece of equipment, but the XCX guide is even more so.
The XCX-ST works as advertised and is well suited for XC and trail riders who have made the jump to a 1by setup. It's not only much lighter than a full guide, but also doesn't have the drivetrain friction associated with a heavier DH orientated system. It will pay dividends to be honest with your riding if you are considering picking up an XCX-ST guide; this isn't the unit for riders looking to lose grams from their long travel bikes or for those who's terrain is gnarly and rough. But it could be just the ticket for many XC racers or fit casual riders that are looking for a lightweight guide alternative for their trailbike.Check out
www.e13bythehive.com to see their entire range of products.
*cough* £14GBP *cough*
Essentially the same thing, but cost-relative. I'm running it 1x9 XT and there isn't a hint of chain rub. Looks just as slick, simple and hasn't let me down yet. I'm not a fan of the seller/distributor much, but the kit works...
but really a quid is like you saying 'buck' ..slang for pound
I've been seeing a lot of pricing apathy developing in recent years, I got into quite an argument with a pro DHer I know about it actually. They didn't see the problem, even when I suggested that it's easy for sponsored riders and rich people to loose perspective on what should be an industry for the riders, by the riders.
I don't care if this peice of plastic cleans itself and works forever, it's not worth a quarter of the asking price! You've spent most of your review elaborating on how this expensive, static copy of a front mech is the solution for many riders out there. All you're doing is colluding in E13's quest to line their own pockets.
Product reviews should question the ridiculous as well as praise the sensible and progressive. Riders, including myself, are getting sick and tired of biking press becoming shills for the larger companies in the industry! If you want respect then act like a rider and tell it as it is, good or bad!
This is, for the most part, a stupid product. It's the cycling equivalent of the tongue scraper on the back of your toothbrush. There always seems to be somebody somewhere spewing out this kind of crap to justify their job. Disappointing, very disappointing!
If the bike biz wants to make it work stop charging more for parts/components then people pay for motorcycles.... stop making hundreds of thousands of products that are only sold for pennies on the dollar on price point and jensen and actually influence and control the market.... its still capitalism but goddamn...
Are you kidding me? I told you what the product does good and bad, as well as it's drawbacks and who should or should not use it, and the MSRP. You decide if you want to lay out the cash for it, if not, don't. You have all the facts at your disposal.. There are those who will want to buy it.
There are some very functional, productive trend in MTBing. Then there are marketing ploys like this. They seem to occur on a fairly regular basis. A rider's response to such products demonstrates either how clued up or how niave they are. For example, as many people have commented, there are significantly cheaper alternatives to this offering. E13 are obviously resting on their laurels by producing a plastic, static front cage; putting their symbol on it and then over inflating the price to an intelligence insulting level.
You are probably right when you say there are people who want to buy this. Just like there are people out there that listen to sh*t auto-tuned, overly processed 'music'. Or watch any crap that is on the TV. It doesn't make it sensible or intelligent. Anybody who wants to buy this is probably just a bit stupid and gullible when it comes to the bike industry.
So there you go, my review of your review. What we both have in common is that we are just passing our own opinion about something. My point is that you have been given a position of relative responsibility and it seems you've failed to deliver a balanced piece.
I installed it, rode it, and wrote about it... "failed to deliver a balanced piece."? I wrote that it had drag that I was never able to dial out (not a good thing for the XC-type bike that it will probably end up on), and that it wasn't able to keep my chain on the bottom half of the ring on rough terrain. Both are pretty big points of contention for a chain guide. And just to clear it up for you, e.13 has never advertised with us.
It doesn't resemble a front derailleur at all. The slider is shaped to keep the chain on, not move it back and forth. Locking out your front derailleur is not the proper solution if you want a 1 x 9 setup for any length of time.
And I'm sure every sane person will do just that.
Also, I would buy E13 because Phil (philw86) from E13 gets on the mechanics forums and answers people's questions. He has been very helpful to pinkbike members. I've never seen anyone from MRP, Gamut, Blackspire, or Superstar answering peoples questions. Support the people that support you.
Reread please.. "The XCX-ST is a compact, seat tube mounted guide, ideal for bikes that use press-fit bottom bracket bearings, that makes use of an upper slider for chain retention - there is no lower roller or guard"
Agreed on how e.13's customer service, especially in the forums, is a huge bonus.
www.bbgbashguard.com/Mountainbike.html
The paul components us-made chain keeper one allows this, and it`s half the price
Just what I've been after for the past few years
Besides, derailleur is quite heavy By the way, MRP introduced a similar thing few years ago, it's not any new idea
So good infact, that I just bought one! Thanks Superstar
A warning to Superstar buyers: My mate just bought a superstar chain guide and it doesn't come with chain ring bolt spacers like the MRP guide does. These are needed to take up the extra length on the chain ring bolts that is there to allow the big ring to be mounted. Either that or you will need shorter bolts.
The people who write reviews want brands to advertise with them, i.e. pay them.
You don't bite the hand that feeds you!
Maybe I'm just enjoying not writing multiple thousand word essays for my degree and you could consider not slating me for ONE spelling error!!! And considering how Americans have distorted the English language over the past couple of hundred years, I think I'm allowed the odd error here and there...don't you?
It's pretty clear that we have a disregard for each other, shall we leave it at that?!
You've honestly never seen my posts before? I've been posting on this site for 11 years.
Shall we start a fresh?
I certainly understand your concern about the price, it isn't a cheap unit... But I'm not going to tell you that it is too much money. I will tell you what it does good and what it does bad, you decided if it's in your budget or worth the price. If you read the review you'll know that not only did it have some drag that I was not able to dial out, but it also didn't manage to keep the chain on the bottom half of my ring over rough ground. Those are pretty big points of contention for a chain guide. The review was more than fair and critical enough.
Another issue is the fact that I have never tested or had any time on the Superstar unit that is mentioned repeatedly in the comments section. Yes, it's cheaper, but what if it doesn't work as good? I cannot reference the Superstar, or any other similar product, if I've never tested it. And to those who are going on about locking out your front derailleur - that can't be compared. A front derailleur cage is shaped to move the chain of your rings, not hold it in place. I've rigged one up like this many many years ago and it worked OK, but I still lost my chain completely a few times. Both the XCX, Superstar, and a few others, are designed properly to do the job. If you're doing a quick and dirty 1 x 9 test to see if it's for you, then yeah, it'll work. If you want to do it right and not risk losing a chain, get the right tool for the job.
the ones they sell look and work the same but currently sell for £14 rather than e.13's £35...
EDIT : Superstar do not offer a copy of this. their version is BB mounted where as this is frame(seattube) mounted, similar, but not it.
Well I have a one big hint to all of us. It is only a matter of time when China starts behave just like us. That means they will have to find an unexploited land, and there is only few left. So when China moves 50% of their production to Africa then it is a good time to build an own rocket and get the F*** out of here...
www.pinkbike.com/photo/5967553
Haven't you guys heard what's happened there?
You are 20 and wanna go for a trip to Whistler from Europe? - wait until you are 30ty have a steady job, so you can afford it - fu*ck off! Haven't you heard about the student loan?! You are 30 you want a house with backyard where you can build a pumptrack -> you have at least 15 more years before you can afford it- f*ck off! Haven't you heard about the mortgage?!
Basterds increasing taxes! well if Goverment bails up banks for loans you take, then how do you think it gets money to pay for it?! Banks making all the money then! basterds! - Well who gives it to them by paying interest from loans?! Do they make you do that?! Or you just like shortcuts in your life? Well "Someone" could say that everytime there is a situation like Iceland, Ireland, Greece - that they should eat the crap - and don't get a single euro cent, but oh it is not politicaly correct
Guns don't kill people - shortcuts do (good for you, your shortcuts kill people in the "other" part of the world in those "other" countries, should we replace "other" with "developing" or rather "worse kind - able to eat crap - it is not our problem")
P.S. I live in SE but I'm from PL actualy
The most ridiculous thing for me lately is the war against tobacco industry. In Sweden you can't smoke in most of own apartments!!! But it is demn fine for the government to allow commercials of "take a loan" f**n everywhere! You come to university: what do you see on the wall? - can't smoke or drink alcohol anywhere on the campus, information board to the left: Take a loan and study in Australia! and a surfer picture next to it... This is the value for them: SAFETY! You are obliged to be safe and healthy under the risk of fine!"