ECZS Specs

Upper Cup	Size	Stack (mm)	Lower Cup	Size	Stack (mm)	Kit Angle Range	Kit Weight (g)
0000-1436	EC44	15.9	0000-1438	EC49	14.1	2.0 - 2.8	83.1
0000-1436	EC44	15.9	0000-1439	EC56	14.1	2.0 - 2.8	103.9
0000-1436	EC44	15.9	0000-1440	ZS56	3.7	1.5 - 2.1	70.1
0000-1437	ZS44	11.0	0000-1438	EC49	14.1	1.4 - 1.9	69.7
0000-1437	ZS44	11.0	0000-1439	EC56	14.1	1.4 - 1.9	90.5
0000-1437	ZS44	11.0	0000-1440	ZS56	3.7	0.8 - 1.2	56.7

* Kit weights only include cups, as received weights may vary.

** Angles are dependent on headtube length, please double check with our filter tools.

Slacken Configuration "Typical" Medium MTB Frame

Top Cup		Bottom Cup		Head Tube			Seat Tube Angle	Bottom Bracket Height	Front Center	Wheelbase	Stack	Reach	Stack (to stem)	Reach (to stem)	Headset & Head Tube Length
ZS	EC	ZS	EC	Angle Change	Head Angle	Trail	Seat Tube Angle	Bottom Bracket Height	Front Center	Wheelbase	Stack	Reach	Stack (to stem)	Reach (to stem)	Headset & Head Tube Length
X		X		-1.00	-0.75	5.67	0.25	-1.95	9.91	9.78	-2.33	2.06	-2.10	1.50	0.16
	X	X		-1.93	-1.47	11.18	0.47	-3.64	17.75	17.51	-4.99	2.50	-0.13	-0.88	5.12
X			X	-1.64	-1.62	12.38	0.02	-0.11	21.35	21.34	-0.34	-0.29	0.23	-1.54	10.55
	X		X	-2.49	-2.28	17.47	0.22	-1.68	28.45	28.35	-2.86	0.01	2.27	-4.07	15.53

Steepen Configuration "Typical" Medium MTB Frame

Bike Geometry Table

Top Cup		Bottom Cup		Head Tube			Seat Tube Angle	Bottom Bracket Height	Front Center	Wheelbase	Stack	Reach	Stack (to stem)	Reach (to stem)	Headset & Head Tube Length
ZS	EC	ZS	EC	Angle Change	Head Angle	Trail	Seat Tube Angle	Bottom Bracket Height	Front Center	Wheelbase	Stack	Reach	Stack (to stem)	Reach (to stem)	Headset & Head Tube Length
X	X			1.00	0.73	5.51	-0.26	2.07	-9.78	-9.66	2.44	-2.22	2.08	-1.63	0.16
X	X			1.93	1.46	10.91	-0.47	3.69	-17.77	-17.56	5.03	-2.60	8.83	-3.49	5.12
X	X			1.64	0.76	5.77	-0.87	6.86	-12.54	-12.17	7.22	-9.07	6.85	-8.46	10.55
X	X			2.49	1.43	10.71	-1.06	8.35	-19.83	-19.40	9.66	-9.32	13.47	-10.23	15.53

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