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AM/Enduro Geometry

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18K views 36 replies 25 participants last post by  KRob  
6
#1 · (Edited)
I had to much time today (got bored studying) and did some bike geomety comparison. I compared most popular AM/Enduro bikes. I compared medium size bikes, some of them are 17-18˝ (if they have different sizing).

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My conclusions:
-bikes are getting more and more similar in geometry (few exceptions)
-Nomad, Liteveile601 and Mondraker Zenith have the longest chainstay, but the Zenith has 170mm of travel and Liteville is adjustable, so the Nomad realy stands out in this segment
-Norco Range has the highest BB, even higher than all of the 180mm travel bikes
-Stumpjumper, Ghost AMR and YT Wicked have the lowest BB, but they have 150mm of travel
-Specialized bikes have the shortes CS (but we all expected thad, didnt we?), I was suprised with the new Kona Process and YT wicked
-Ibis Mojo HD has extremly short wheelbase, even shorter than Stumpjumper EVO, which started life as 140mm travel bike
-Nomad and both Mondrakers have the shortest top tube (horizontal)
-Yeti SB66 and all YT bikes have the longest top tube (horizontal)
-If you sort the bikes by CS/WB ratio you almost see which bikes are using which type of suspension. Dual link bikes (Nomad, Ibis, Mondraker) have extremly long CS compared to wheelbase and four bar linkage bikes (Specialized, Kona, Lapierre, Nicolai) have very short chainstay compared to wheelbase. The only bike that stands out is again Norco Range, dont understand really why is that.

Hope you like It, please share your thoughts about this! If you are missing some of your favorites I can add them to the table.

EDIT: New bikes added+seat tube angle
 
#4 ·
I admire the effort that went in to this, and it totally indicates what a bike is all about, but i'd caution anyone who wanted to compare bikes in this fashion to determine what was the best for them. There are other factors, like how the suspension sits in the attack position, ideal bar height, seat tube angle, etc, that influence the handling just as much (if not more) than the popular easy measurements that you've graphed. The bike is a sum of all parts, but not all measurements are easy to quantify.

In any case, it's super interesting, and it's neat to see a new market segment be zeroed in on.
 
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6
#7 · (Edited)
Ok, thank for the input. I will try to add Marin, Pivot and Banshee bikes today.

@scottzg: Yes I know that this geometry doesnt tell everything about the bike, but It hellps for basic info if the bike is more DH or more XC oriented.


EDIT: I have decited that i will only compare bike with 145-180mm of travel. I think 5" (127mm) bikes dont fit in this catagory (AM/endruo)
 
V
#9 ·
Interesting figures... Reach and seat tube angle would be interesting to include in the table also...

Some interesting bikes that are missing from the list:
Rocky mountain Slayer 18": HTA 66.5°, BBH (informed just as -16mm drop), CS 428mm , WB 1147mm , TTH 575mm, STA 75°

Devinci Dixon(M, Low setting): 67°, BBH 347mm, CS 426mm, WB 1124mm, TTH 585mm, STA 72.7°

Knolly Chilcotin(M, Low setting); 66°, BBH 341mm, CS 429mm, WB 1143mm, TTH 598mm, STAe 73°, Reach 420mm
 
6
#13 ·
I have added some bikes:
Nukeproof Mega
Pivot Mach 5.7
Pivor Firebird
Deivnci Dixon
Rocky Mountain Slayer
Banshee Rune (2012)
Marin Atack Trail
Knolly Chilcotin

Pluse new colum, seat tube angle. If u have some other ideas how to improve this please tell.
 
#14 ·
This is awesome!!!! I usually do stuff like this behind the scenes. This is impressive.

I am not sure if you can do this in your program. Can you plot with different colors or symbols to indicate bike travel? This would help highlight travel influences on the geometry.

Again - super cool!
 
#15 ·
First, wow. Fantastic amount of info collected there and organized.

second...:

666Shifty said:
-If you sort the bikes by CS/WB ratio you almost see which bikes are using which type of suspension. Dual link bikes (Nomad, Ibis, Mondraker) have extremly long CS compared to wheelbase and four bar linkage bikes (Specialized, Kona, Lapierre, Nicolai) have very short chainstay compared to wheelbase. The only bike that stands out is again Norco Range, dont understand really why is that.
Click to expand...
Seems like size is a variable missing from this picture. Most bikes have the same CS across sizes, but different WB. Seems like it speaks a bit on how a larger size might handle differently than a smaller one, even though the fit could be the same.
I hadn't really thought of that, so thanks for pointing it out!
 
#21 ·
Wow! I get bored often too and do these kinds of comparisons all the time on scratch paper. But never to this extent and I always end up just throwing them away. I’ve always wanted to make a master list on Excel or something.

This is sooo awesome! This list will definitely come in handy. Thanks for putting in the time and sharing!:thumbsup:

(I think this thread needs to become a “sticky”)
 
#22 ·
Wow! I get bored often too and do these kinds of comparisons all the time on scratch paper. But never to this extent and I always end up just throwing them away. I’ve always wanted to make a master list on Excel or something.

This is sooo awesome! This list will definitely come in handy. Thanks for putting in the time and sharing!:thumbsup:

(I think this thread needs to become a “sticky”)
 
6
#25 ·
Hahaha. I took two weeks break from work to study for exams and this is the result. I still managed to pass two exams today, so not bad after all :D Now I really have to go biking, maybe I will add few bikes later today (Carabine, new banshee, Canyon, Cube, Cove...)
 
V
#26 ·
Couple interesting ones from Morewood, Jabula and Sukuma:

Jabula M: HTA = 66.5°, BBH = +10mm, CS = 433mm, WB = 1139mm, TTH = 585mm, STA = 72.5°, Reach = 399mm

Sukuma M: HTA = 67.5°, BBH = +5mm, CS = 428mm, WB = 1116mm, TTH = 585mm, STA = 72.5°, Reach = 401mm
 
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