Captain Fastbastard Mayhem Posted December 21, 2014 Posted December 21, 2014 interesting, my Pyga Oneten has a 69 head angle . does 0.5 make that much of a difference?Yes. Huge...
Bizkit031 Posted December 21, 2014 Posted December 21, 2014 Yeah true, but the 110 is just so damn versatile. 110mm on the front and it's an xc shredmonster. Stick a 140mm fork on the front and it's a trail demon with a far more trail oriented head angle. And let's be honest here.... who has a 110 with the stock head angle now, anyway? That HA is with a 110mm fork. But that's besides the point. A trail bike imo has between 120 & 150mm travel. Yes on a niner it's slightly different but 110mm travel is STILL 110mm travel. Head angle is still head angle. And imo a trail bike should not have a head angle of 69 degrees. yea my bike has 120 in the front and rear but I want to upgrade it to 140 or 150 so now that I have the Angleset on I'm at 69.5 so when I put the new fork on it should slacken it some more.
Bizkit031 Posted December 21, 2014 Posted December 21, 2014 That 69 degrees they have with the Pyga is with a 130mm fork with 46mm offset.
Captain Fastbastard Mayhem Posted December 21, 2014 Posted December 21, 2014 That 69 degrees they have with the Pyga is with a 130mm fork with 46mm offset.Cool.
Captain Fastbastard Mayhem Posted December 21, 2014 Posted December 21, 2014 Is 46mm considered to be standard?Anywhere between 40 and 53 I think... lyrik is 40mm standard, the Pike on the new reign is 48 but a specifically designed offset for that fork. My marzo is 48mm, but a fox 36 is (I think)46mm. So it varies with fork and bike. Some are specific to that bike.
Bizkit031 Posted December 21, 2014 Posted December 21, 2014 They designed the 51mm offset with 29ers in mind.
cadenceblur Posted December 21, 2014 Posted December 21, 2014 Mmm, was looking at the pikes recently and noticed the different options. Actually not sure what my revelation is.
nolipoli Posted December 21, 2014 Posted December 21, 2014 Anywhere between 40 and 53 I think... lyrik is 40mm standard, the Pike on the new reign is 48 but a specifically designed offset for that fork. My marzo is 48mm, but a fox 36 is (I think)46mm. So it varies with fork and bike. Some are specific to that bike.The Reign is 46mm. But I like the idea of more.
cadenceblur Posted December 21, 2014 Posted December 21, 2014 I believe it increases the angle by pushing your wheel forward.
Raydek Posted December 21, 2014 Author Posted December 21, 2014 Prof Google The purpose of this offset is to reduce 'trail', the distance that the front wheel ground contact point trails behind the point where the steering axis intersects the ground. Too much trail makes a bicycle feel difficult to turn.
Captain Fastbastard Mayhem Posted December 21, 2014 Posted December 21, 2014 I believe it increases the angle by pushing your wheel forward.Nope. Doesn't increase the head angle. Decreases the "trail" of the fork (the distance between the contact patch of the wheel and the point on the ground if you draw a line from the headset to the ground at the bikes head angle. More offset = shorter trail = snappier handling (up to a point)
Raydek Posted December 21, 2014 Author Posted December 21, 2014 This just helped me understand a bit better.. http://m.pinkbike.com/news/To-The-Point-Rake-and-Trail.html
Raydek Posted December 21, 2014 Author Posted December 21, 2014 http://www.pinkbike.com/news/To-the-Point-Wheel-Diameter-VS-Fork-Offset.html
Hairy Posted December 21, 2014 Posted December 21, 2014 And (to my surprise) I found the geometry specs on their website..  AXIS™ A20 FULL SUS 29ER 29"*19" Large Head tube Angle ̊ 69.5° Head Tube Length 120mm Top Tube Length horizontal 620mm BB. Offset - 50mm BB. Height 320mm Wheel Base 1134.4mm BB center to top of Seat Tube 483mm Seat Tube Angle ̊ 72.5° Chain stay Length 445mm  So, 69.5.. Good? could be better?Ray Your current ride is an xc xcm ride, the overall components will mirror this design intent.  Your rims will be of the narrower proportions and once you go over a certain tyre width a larger volume tyre will start rolling on the rims, the stock stem will be a little longer and the bar a bit narrower. You already added a dropper post and I am sure this had already transformed your riding experience. Other questions like rotor size can be left for another day....you're not a big boned rider so this is not so critical to you right now if you are happy with your bikes current stopping power.  If you want to do some more low cost mods, try a wider bar mated with a shorter stem. ...These two go hand in hand with one another.  Tyres you have already started playing with. Check with the lbs that recently sorted your fork out for you if you can extend the travel on that rock shox. More travel will also slacken out you ha a bit and from what I recall from your bike, the tube junctions around the head tube are generous. This will also then raise your bb a bit. ....so take note. If the slacker head angle feels good then give the more expensive headset angle mahafta thigie mabob a try as this will then also drop your bb height again.  Further to the ha being slackened, by just using a headset thingie you would slightly steepen your seat angle. ...not and issue as it is already rather slack and could do with a little steepening....of you add a longer fork into the equation your sa will slacken again. All things considered a 69.5deg ha is not bad at all for a xc bike and more specifically for a 29er it is rather decent.  You need to know where you are going to draw the line though, there cones a point where you would just be better off getting a more gravity oriented bike.
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