This is the standard 2011 for manufacturers Mtb as we have seen in recent fairs just finished (EUROBIKE in the first place), the RIGIDITY ' seems, indeed not appear but is new frontier also introduced looms competitive by Xc ( even if we say everything has already started quietly, but perhaps even already .. in 2009 presented with two new sets of wheels, the axle through 15 mm of the Wh-MT65 Shimano has decided to expand its range with the front hub with E-thru system was already available in the groups at the top, and Xtr Xt, and there will also be in the range 2010 version SLX) with thru-axle rear 12 x 142 mm , wishing you could mount the 15mm for both AM and XC, but that's another story, in fact that must the dropouts support this measure, but already the 12 should be just fine. A new standard that can not do without light, since we're talking about, and since the CROS COUNTRY its dimensions are much smaller than the classic through axle used in the disciplines Gravity. This beautiful (let us say, the not see Quick Reles back to me like very much another matter the speed of a wheel having sostiruire the last minute before a start in the race, or a training solution that ....) allows optimum transfer of power to the rear wheel power we use to push on the pedals. Who we give the fault of this news? At Specialized with its new standard to back the 142 +.
Also new for 2011 is the shimano pin passing from 15 to 12 mm for the rear wheel, also in the group, mostly XC and Trail that goes with the new wheels WH- M985-R (XC) Rear wheel 15 mm thru-axle system and high-rigidity (M985-F15).
Will not it come time to replace the quick release it? Not yet, but if the extraction and replacement, which could become effective in a short time ... we'll see what in the future will happen with this standard meanwhile let's enjoy what we .
Within xc most of it comes through axle 12x142.
doubts? Perhaps there are those who think of weight, practicality '? Yes and no, or maybe it's found yet another market? No is quiet "play" really great and ... ..
Let better:
"The goal of 12x142 is to make the pin-through fast and simple as a standard quick release. We must therefore seek to stiffness of a pin 12 mm uniting the ease of integration and self-positioning of the wheel of a quick release.
12 mm is the diameter through the axis, while 142 are refers to the width of the hub (from end cap to end cap)
Both the cassette and disc brake are related to the hub in the identical way they did it with one of 135 mm. The dropouts of the frames have a slot of 3.5 mm in which you place the end of the hub, the width of the wagon does not change from what was in 10x135 mm.
If the pins through 15 mm requires a bottom bracket from 83 mm for proper chain line, the pin 12x142 rather not have this need and works perfectly with any variation of the bottom bracket (Press Fit, BB30, etc. ..) of modern MTB XC or All Mountain. The Most manufacturers will only have to produce the outer end caps for their hubs to fit the new standard. Actually you can already see the hubs with interchangeable end caps, so you can easily switch from one standard to another.
The positioning of the wheel drive means that there is no need to turn the bike upside down to center the wheel and insert the pin. Simply insert the plug-wheel in the two calls, without tipping, as a standard quick release, and then slip the loop tightening like normal locks.
The system seems to be very functional, especially because of greater rigidity to the wheel, but only time will tell if this system will become truly a standard used by all, or will be left in the oblivion of small developments are missing. "
(Source world mountain bike)
This will be an article dedicated mainly to news SHIMANO 2011, we go forward, we take a small step back and let to see how the industry hubs presents:
source: David Riva
"rear hub The back gauge is the distance measured on the chassis (wagon), inside of the dropouts or dropouts that house the rear hub, this is measured in millimeters. This is a key parameter for the choice of the hub, for example, a hinged frame can contain only 130mm hubs with 130mm joke.
In recent years, bicycles are increasingly conceived and designed for purposes different from each other, in a sense we speak here of specialization ..
long time ago such as sports or racing bike had set the standard of the measure back to 130mm and the system coupling is of course the QR, or quick release. The track bike, however, had and have still beaten by 120mm as the rear hub for a single gear and do not need the space required on the road bike instead.
When you speak, therefore, road bike and beaten by 130mm, so we speak of an established standard and is still in use, 99.9% of the road bike has the rear dropouts to 130mm hubs that house and fixing system to QR (quick release).
ATB initially worked on this standard, but soon abandoned him, today nearly all MTB "traditional" is not so for FR or DH or other specific uses, they are beaten back by 135mm and fixing system QR. These are 5mm longer a habit to stand out from the road bike but a necessity dictated by the major dimensions of the transmission load of different toppings, and sometimes triple the joints present on full suspension frames.
With the increase of trips and the advent of the DH, 135mm QR MTB system started to show some deficiency in terms of safety and performance. Here then is the first stop hubs with a 135mm thru-axle, or a new system where the whole "rear hub +" is held together thanks to a generous thru-axle with locking bolts or nuts.
A similar solution but did not find the same success of the pin is passing through the hub with pin full thread on which to tighten the locking nuts.
And yet, in need of need to get to the DH and FR bike hinged rear 150mm with 12mm through axle.
These systems do not excel for ease in fitting and removing the rear wheel here is that some companies will devise systems more or less convenient to meet the market needs to make more "user frendly" rear pin. One of the most successful is the Rock Shox Maxle system that allows you to not have to use keys for the assembly and disassembly. Other companies have instead reduced to a single key (Allen 5 or 6 mm) is necessary for the operation, this is a smart solution. By contrast, other manufacturers seem to give due importance to the issue and offer frames with brainy, awkward systems that integrate four screws and two or three aluminum parts to fix the wheel, I advise you to check out these other aspects when considering a major purchase.
Wanting to prepare a short list we can say that:
-frames from the track and some walking frames have 120mm
stop-I frames and many road "sport bike" are often beaten by 130mm
Frames-MTB "normal" are often beaten by 135mm
-frames from DH and FR beaten by 135mm or 150mm 12mm pin 12mm pin
really need to check a bike for a bike and make an endless list, I think the important thing is to remember that when you buy a frame or a pair of wheels, you should inquire in advance and make sure of compatibility.
The hub quick release was widely used until a few years ago on the front wheels, whereas today we tend to make greater use of the system pin. Anyway, the quick release is a standard still in use in XC / marathon, even if the houses are leaning more and more toward the pin-through even for the most cycling disciplines.
The standard of these hubs is 100x9mm, which is the hub was beaten by 100mm and the diameter of the dropouts should be 9mm.
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The thru-axle hub in recent years, however, was used almost exclusively for use in gravity, but now found widely distributed also in enduro / AM and also on some bikes XC / marathon. "
continue with Shimano in 2011 that introduced these types of hubs and wheels
WH-M985-F (XC) Front Wheel
WH-M985-F15 (XC) Front Wheel with 15mm E-Thru system
WH-M985-R (XC) Rear Wheel
· Super lightweight scandium 19C tubeless rims
· 14mm aluminum axle with QR lever (M985-F/M985-R)
· 15mm E-Thru system with high rigidity axle (M985-F15)
· Center Lock rotor mount system
WH-M988-F15 (AM) Front Wheel with 15mm E-Thru system
WH-M988-R12 (AM) Rear Wheel with 12mm E-Thru system
WH-M988-R (AM) Rear Wheel
· Super lightweight scandium 21C tubeless rims
· New titanium freehub body for quick engagement and perfect traction
· Center Lock rotor mount system
Hub HB-M985 Front
Hub FH-M985 Rear
° Torque and cone bearings with double contact closure
· High rigidity and lightweight aluminum axle with 14mm QR lever
HB-M988 front hub E-Thru
FH-M988 rear hub wheel Free E-Thru
SM-AX75 E-Thru Axis
· System high rigidity with E-Thru axis
· Housing titanium
° Torque and cone bearings with double contact closure
WH-M985-F (XC ) front wheel
WH-M985-F15 (XC) front wheel and 15 mm-Thru
WH-M985-R (XC) Rear wheel
· 14 mm aluminum axle with QR lever ( M985-F/M985-R)
· 15 mm thru-axle system and high-rigidity (M985-F15)
WH-M988-F15 (AM) Front wheel and 15 mm-Thru
WH-M988-R12 (AM) E-Thru Rear wheel 12 mm
WH-M988-R (AM) rear wheel
there a single standard, here here we would like a cleaner, but until a standard not become predominant over others continue to have different measures, however, it is important to have .. .. then slowly, slowly.
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