HEADSET TECHNICAL GUIDE - Hope Tech
[Pages:5]HEADSET TECHNICAL GUIDE
HEADSET ANATOMY
As you might have worked out by now, headsets are a bit of a minefield! Integrated, integral, reducers, dimensions and types all contribute to confusing the situation. Don't panic! Hopefully this booklet will help you through choosing the right headset for your bike.
A couple of things to remember though - we don't necessarily do a headset to fit your bike! We have 4 `off the shelf' combinations and a further 18 `Pick n Mix' options. There are other styles, types and fittings out there. The thing to remember is that you need accurate dimensions if you are at all unsure of what type you need.
The second point to remember is that unfortunately there is no `standard' - OK, we have the dimension 1 1/8", which covers the majority of headsets now, but as far as Integral, integrated etc... these are simply terms used by different manufacturers to determine what they consider that style to be. Measure, check and measure again!
One thing that is common throughout our range is the quality of materials used to manufacture them, here in our Barnoldswick Factory, the quality of the custom made stainless steel bearings and the time taken to hand assemble each and every one before it leaves, on it's way to you!
1 1/8" (1A) assembly
All headsets are built in this order. If in doubt, call the Technical line on +44 (0) 1282 818413 for help.
Top Cup Assembly
Top Cap O'ring Top Cap Top Cap Outer Seal Shim (Optional upto 3) Tapered Ring Top Bearing
Top Cup
Bottom Cup Assembly
Bottom Cup
Bottom Bearing Crown Race Crown Race Outer Seal
HOPE OFF THE SHELF HEADSETS
Our traditional headset is made to fit standard frames and 1 1/8" fork steerers. They include custom made stainless steel bearings (which are replaceable). The cups, taper ring and crown race (which is split for easy installation and removal) are all machined from 2014 T6 aluminium.
The integral headset is made to fit low stack 1 1/8" frames (please check drawings for exact sizing). They include custom made stainless steel bearings (which are replaceable). The cups, taper ring and crown race (which is split for easy installation and removal) are all machined from 2014 T6 aluminium.
The integrated headset is made to fit in 1 1/8" frames where the bearings fit directly into the frame. They include custom made stainless steel bearings (which are
replaceable). The taper ring and crown race (which is split for easy installation and removal) are all machined from 2014 T6 aluminium.
The tapered headset is designed to fit frames which are sized to accept integral 1 1/8" top cup and 1.5" integral bottom cups, where the fork steerer has a 1.5 crown and a 1 1/8" top.
It is also possible to fit a standard 1 1/8" steerer using an additional conversion crown. The headsets include custom made stainless steel bearings (which are replaceable). The cups, taper ring and crown race (which is split for easy installation and removal) are all machined from 2014 T6 aluminium.
All off the shelf headsets come complete with the Hed Doctor. Sealing is achieved through an adjustable taper ring cover and integrated rubber seal. The bearings also incorporate their own sealing, and being made from stainless steel to resist corrosion - a real advantage over a conventional steel bearing.
Traditional headset Tapered headset
Integral headset
Integrated headset
COMPATIBLE HEAD TUBE TYPES
Traditional
Integral
Integrated
34.10
+0.05 0
33.90
+0.05 0
HOPE : 1 S.H.I.S. : EC34/28.6 1 1/8" Traditional
44.10
+0.05 0
43.95
+0.05 0
HOPE : 2 S.H.I.S. : ZS44/28.6 1 1/8" Integral
41.10
+0.05 0
41.10
+0.05 0
HOPE : 3 S.H.I.S. : IS41/28.6 1 1/8" Integrated
Tapered/E2
Tapered Scott / Lapierre
44.10
+0.05 0
43.95
+0.05 0
HOPE : 2 S.H.I.S. : ZS44/28.6 1 1/8" Integral
44.10
+0.05 0
43.95
+0.05 0
HOPE : 2 S.H.I.S. : ZS44/28.6 1 1/8" Integral
English made
1.5"
HOPE : 4 S.H.I.S. : ZS49/28.6 1 1/8" Integral
49.70
+0.05 0
49.57
+0.05 0
HOPE : 6 S.H.I.S. : EC49/38.1 1.5" Traditional
11.50 min
11.50 min
?0.10 10
?0.10 10
9.50 min
9.50 min
9.50 min
9.50 min
9.50 min
9.50 min
10 min
10 min
11.50 min
10 min
10 min
9.50 min
?0.10 10
10 min
34.10
+0.05 0
HOPE : A S.H.I.S. : EC34/30 1 1/8" Traditional
44.10
+0.05 0
HOPE : B S.H.I.S. : ZS44/30 1 1/8" Integral
HOPE : H S.H.I.S. : EC44/40 1.5" Traditional
41.10
+0.05 0
HOPE : C S.H.I.S. : IS41/30 1 1/8" Integrated
55.90
+0.05 0
56.05
+0.05 0
HOPE : E S.H.I.S. : ZS56/40 1.5" Integral
54.90
+0.05 0
55.05
+0.05 0
HOPE : G S.H.I.S. : ZS55/40 1.5" Integral
HOPE : HS136 1 1/8" to 1.5" lower steerer crown converter
49.70
+0.05 0
HOPE : D S.H.I.S. : ZS49/30 1 1/8" Integral
HOPE : F S.H.I.S. : EC49/40 1.5" Traditional
Standardized Headset Identification System [ S.H.I.S. ]
EXAMPLE:
Upper headset description
Upper
Upper
Headset Type Headtube Bore
Stem Clamp Diameter
EC34 / 28.6 | ZS55 / 40
Lower
Lower
Headset Type Headtube Bore
Crown Race Seat Diameter
Lower headset description
Green characters describe the general style of headset type (note these can be different for upper and lower)
Blue characters describe the headtube bore (2 digits)
S.H.I.S. : EC
Representing : External Cup
S.H.I.S. [mm]
30 : 30,0 34 : 34,0 37 : 37,1 44 : 44,0 49 : 49,65
Traditional
S.H.I.S. : ZS
Representing : Zero Stack
S.H.I.S. [mm]
44 : 44,0 49 : 49,65 55 : 55,0 56 : 56,0
Integral
S.H.I.S. : IS
Representing : Integrated
S.H.I.S. [mm]
41
: 41,0
42 : 41,8
47 : 47,0
49 : 49,0
52 : 52,0
Integrated
UPPER
S.H.I.S.
HOPE REF
EC34/28.6
1
ZS44/28.6
2
IS41/28.6
3
ZS49/28.6
4
ZS56/38.1
5
EC49/38.1
6
LOWER
S.H.I.S.
HOPE REF
EC34/30
A
ZS44/30
B
IS41/30
C
ZS49/30
D
ZS56/40
E
EC49/40
F
ZS55/40
G
EC44/40
H
BEARING DIMENSIONS
1.5" Bearing
52
45?
45?
1 1/8" Bearing
41
45?
36?
40
30.15
7 6.50
Orange characters describe the fork steerer, these codes have different values for upper and lower due to the step on steerers (2.1 digits for the upper, 2 for the lower)
Fork Steerer Type : 1 1/8"
28.6 ?0.05
Fork Steerer Type : 1 1/8" - 1 1/2"
28.6 ?0.05
Fork Steerer Type : 1 1/2"
38.1 ?0.05
30.0 ?0.03
40.0 ?0.03
40.0 ?0.03
Upper S.H.I.S. : 28.6 Lower S.H.I.S. : 30
Fork Steerer Type : 1"
25.4 ?0.05
Upper S.H.I.S. : 28.6 Lower S.H.I.S. : 40
Fork Steerer Type : 1" Threaded
25.4 ?0.05
Upper S.H.I.S. : 38.1 Lower S.H.I.S. : 40
Fork Steerer Type : 1 1/4"
31.7 ?0.05
Fork Steerer Type : 1 1/8" - 1 1/4"
28.6 ?0.05
27.0 ?0.03
27.0 ?0.03
33.0 ?0.03
33.0 ?0.03
Upper S.H.I.S. : 25.4 Lower S.H.I.S. : 27
Upper S.H.I.S. : 25.4-24tpi Lower S.H.I.S. : 27
Upper S.H.I.S. : 31.7 Lower S.H.I.S. : 33
Upper S.H.I.S. : 28.6 Lower S.H.I.S. : 33
Hope Technology (IPCO) Ltd
Calf Hall Road, Barnoldswick Lancashire, United Kingdom,
BB18 5PX
GENERAL: +44 (0)1282 851400 SALES: +44 (0)1282 851200 FAX: +44 (0)1282 851201
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