Reset Racing Flatstack A ZS44/28.6 Headset Top Assembly

Flat design: The Flatstack A ZS44/28.6 upper headset cup by Reset Racing

The Reset Racing Flatstack A upper headset cup is characterised by its particularly flat design and its angular contact ball bearings. An elaborate sealing system protects the bearings against dirt and splash water from the outside.

Use:

for 1 1/8" upper head tubes combined with 1 1/8" or 1 1/8" - 1.5" tapered forks.

Specifications:

Application:

Cross Country

Top Cup:

1 1/8"

Steerer Tube:

1 1/8" , 1 1/8" - 1.5" tapered

Design:

Zero Stack (ZS)

Technical Information:

Material:

aluminium (7075), composite (NBR)

Bearings:

angular contact ball, steel

Upper Insert Depth:

11 mm

Top Stack Height:

3.5 mm

Top Outer Diameter:

44 mm

Top Inner Diameter:

28.6 mm

Seals:

radial shaft seal, O-ring

Features:

• anodised and laser engraved

Standardized Headset Identification System (S.H.I.S.):

In order to clarify and bring uniformity to a sea of headset standards, manufacturers Acros, Cane Creek, Hope, Race Face, Reset Racing and Ritchey have agreed upon using a shared nomenclature, which will likely include more participating companies in the future. This system takes into account a combination of frame and fork dimensions. Both the top and bottom parts of the headset are marked by two alphanumeric identifiers. The first identifier indicates the type of headset (External Cup, Zero Stack, Integrated) and head tube diameter. The second identifier - separated from the first by a backslash - indicates the diameter of the steerer tube. When referring to a complete headset, the specifications of both top and bottom parts must be combined.

Nomenclature:

EC:

Bearings contained within headset cups that are located outside of the frame (External Cup)

ZS:

Bearings contained within pressed-in headset cups where the cup and bearings rest inside the frame (Zero Stack)

IS:

Bearings that fit directly into a bonded or machined interface that is integrated into the frame (Integrated)

Manufacturer Number:

7082

Contents:

• 1 x Reset Racing Flatstack A upper cup incl. stainless steel bearings
• 1 x Reset Racing Ahead top cap
• 1 x star nut with aluminium bolt
• 1 x undercover
• 1 x compression ring
• 1 x O-ring
• 1 x O-ring