• Brake Disc Type: Vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Number of Holes: 5
• Height [mm]: 46.9
• Centering Diameter [mm]: 68
• Fitting Position: Front Axle
• Minimum thickness [mm]: 25.4
• Bolt Hole Circle Ø [mm]: 114
• Name: PIDURIKETAS
• Manufacturer: MAX

• Fitting Position: Front Axle
• Minimum thickness [mm]: 25.4
• Brake Disc Type: Vented
• Bore Diameter [mm]: 15.8
• Brake Disc Thickness [mm]: 28
• Bolt Hole Circle Ø [mm]: 114.3
• Number of Holes: 5
• Inner Diameter [mm]: 147.7
• Height [mm]: 44
• Centering Diameter [mm]: 68
• Outer Diameter [mm]: 320
• Manufacturer: DENCKERMANN ZAWIESZENIE
• Quantity per packing unit: 2

• Fitting Position: Front Axle
• Brake Disc Type: internally vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Number of Holes: 5
• Surface: Coated

• Fitting Position: Front Axle
• Brake Disc Type: Vented
• Rim Hole Number: 5
• Height [mm]: 44
• Brake Disc Thickness [mm]: 28
• Outer Diameter [mm]: 320
• Hub Diameter 1 [mm]: 68
• Manufacturer: JPN

• Fitting Position: Front Axle
• Brake Disc Type: Vented
• Brake Disc Thickness [mm]: 28
• Bolt Hole Circle Ø [mm]: 114
• Number of Holes: 5
• Height [mm]: 44
• Centering Diameter [mm]: 68
• Surface: Coated
• Outer Diameter [mm]: 320
• Manufacturer: KAMOKA UK£ADY HAMULCOWE

• Fitting Position: Front Axle
• Test Mark: R90
• Height [mm]: 44
• Brake Disc Type: Vented
• Brake Disc Thickness [mm]: 28
• Outer Diameter [mm]: 320
• Number of Holes: 5
• Centering Diameter [mm]: 68
• Bolt Hole Circle Ø [mm]: 114.3
• Surface: Coated
• Manufacturer: KAV KAVO PARTS TARCZE
• Quantity per packing unit: 2

• Brake Disc Thickness [mm]: 28
• Rim Hole Number: 5
• Number of mounting bores: 2
• Thickness [mm]: 43.9
• Outer Diameter [mm]: 320
• Bolt Hole Circle Ø [mm]: 114.3
• Surface: Coated
• Brake Disc Type: internally vented
• Fitting Position: Front Axle
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Weight [kg]: 9.32
• Observe service information:
• Manufacturer: FEBI BILSTEIN
• Quantity per packing unit: 2

General Information: These products are designed to be used as originally intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are usually supplied without fitting instructions.

• Fitting Position: Front Axle
• for article number: LP3734
• Quantity per packing unit: 2
• Brake Disc Type: Vented
• Number of Holes: 5
• Test Mark: E1 90R-02C0592/1866
• Surface: Oiled
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Height [mm]: 44
• Manufacturer: DELPHI LOCKHEED HAMULCE
• Name: DE BG4266

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Brake Disc Thickness [mm]: 28
• Height [mm]: 44
• Brake Disc Type: internally vented
• Number of Holes: 5
• Manufacturer: LPR

• Brake Disc Thickness [mm]: 28
• Rim Hole Number: 5
• Number of mounting bores: 2
• Thickness [mm]: 44
• Outer Diameter [mm]: 320
• Bolt Hole Circle Ø [mm]: 114
• Surface: Coated
• Brake Disc Type: internally vented
• Fitting Position: Front Axle
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Weight [kg]: 9.32
• Observe service information:
• Manufacturer: BLUEPRINT
• Quantity per packing unit: 2

General Information: These products are designed to be used as originally intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are usually supplied without fitting instructions.

• Brake Disc Thickness [mm]: 28
• Rim Hole Number: 5
• Number of mounting bores: 2
• Thickness [mm]: 43.9
• Outer Diameter [mm]: 320
• Bolt Hole Circle Ø [mm]: 114.3
• Surface: Coated
• Brake Disc Type: internally vented
• Fitting Position: Front Axle
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Weight [kg]: 9.32
• Name: SW 60 94 3949
• Manufacturer: SWAG

General Information: These products are designed to be used as originally intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are usually supplied without fitting instructions.

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Brake Disc Type: internally vented
• Minimum thickness [mm]: 25.4
• Height [mm]: 44
• Bolt Hole Circle Ø [mm]: 114
• Centering Diameter [mm]: 68
• Supplementary Article/Info 2: without wheel hub, without wheel studs
• Surface: painted
• Number of Holes: 5
• Name: Piduriketas
• Manufacturer: QUARO

• Fitting Position: Front Axle
• Height [mm]: 66
• Brake Disc Type: internally vented
• Brake Disc Thickness [mm]: 24
• Minimum thickness [mm]: 22.4
• Number of bores: 1
• Outer Diameter [mm]: 330
• Number of Holes: 5
• Centering Diameter [mm]: 75
• Bolt Hole Circle Ø [mm]: 120
• Surface: Coated
• Name: SK VKBD80091V1
• Manufacturer: SKF

• Quantity per packing unit: 2
• Fitting Position: Front Axle
• Brake Disc Type: Vented
• Brake Disc Thickness [mm]: 28
• Outer Diameter [mm]: 320
• Height [mm]: 46.9
• Number of Holes: 5
• Centering Diameter [mm]: 68
• Bolt Hole Circle Ø [mm]: 114.3
• Surface: painted
• Weight [kg]: 18.9
• Minimum thickness [mm]: 25.4
• Manufacturer: TOMEX C

• Fitting Position: Front Axle
• Brake Disc Type: Vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Number of Holes: 5
• Height [mm]: 46.9
• Centering Diameter [mm]: 68
• Bolt Hole Circle Ø [mm]: 114.3
• Bore Diameter 1 [mm]: 15.7
• Bore Diameter 2 [mm]: 8.5
• Colour: black
• Surface: painted
• Test Mark: E1 90R-02 C0185/0729
• Name: PIDURIKETAS
• Manufacturer: TRW
• Quality class: Q

SVHC: No information available, please contact the manufacturer!

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Height [mm]: 43.9
• Bolt Hole Circle Ø [mm]: 114.3
• Brake Disc Type: Vented
• Centering Diameter [mm]: 68
• Number of Holes: 5
• Surface: Oiled
• Machining: Alloyed/High-carbon
• Supplementary Article/Info 2: with bolts/screws
• fulfils ECE norm: ECE-R90
• Bore Diameter up to [mm]: 15.7
• Name: PIDURIKETAS
• Manufacturer: BOS

• Fitting Position: Rear Axle
• Brake Disc Type: solid
• Brake Disc Thickness [mm]: 11
• Bolt Hole Circle Ø [mm]: 114
• Number of Holes: 5
• Supplementary Article/Info 2: with wheel bearing
• Height [mm]: 91
• Centering Diameter [mm]: 52
• Surface: Coated
• Outer Diameter [mm]: 290
• Manufacturer: KAMOKA
• Quantity per packing unit: 2
• Additional information: 103029 KAMOKA
• Lisainfo: 103029 KAMOKA

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Brake Disc Type: internally vented
• Minimum thickness [mm]: 25.4
• Height [mm]: 44
• Bolt Hole Circle Ø [mm]: 114
• Centering Diameter [mm]: 68
• Supplementary Article/Info 2: without wheel hub, without wheel studs
• Surface: painted
• Machining: High-carbon
• Number of Holes: 5
• Name: Piduriketas
• Manufacturer: QUARO

• Fitting Position: Front Axle
• Quantity per packing unit: 2
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Height [mm]: 44
• Rim Hole Number: 5
• Brake Disc Type: Vented
• Centering Diameter [mm]: 68
• Bolt Hole Circle Ø [mm]: 114.3
• Surface: Coated
• Hub Diameter [mm]: 159
• Weight [kg]: 9.32
• Installation Information: Important: Observe Fitting Instructions
• Manufacturer: ABS

• Fitting Position: Front Axle
• Construction Year from: 01.2017
• Quantity per packing unit: 2
• Test Mark: ECE-R90
• Height [mm]: 44
• Brake Disc Type: Vented
• Brake Disc Thickness [mm]: 28
• Outer Diameter [mm]: 320
• Number of Holes: 5
• Centering Diameter [mm]: 68
• Surface: painted
• Manufacturer: METELLI UKL.HAMULCOWY

• Fitting Position: Front Axle
• Height [mm]: 43.9
• Brake Disc Type: Vented
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Number of bores: 5
• Outer Diameter [mm]: 320
• Centering Diameter [mm]: 68
• Manufacturer: DRIVE

• Fitting Position: Front Axle
• Brake Disc Type: internally vented
• Brake Disc Thickness [mm]: 28
• Number of Holes: 5
• Supplementary Article/Info 2: with bolts/screws
• Height [mm]: 44
• Centering Diameter [mm]: 68
• Outer Diameter [mm]: 320
• Machining: High-carbon
• Surface: Coated
• Minimum thickness [mm]: 25.4
• Tightening Torque [Nm]: 105
• Manufacturer: BREMBO
• Name: BR 09.B352.11
• Quantity per packing unit: 2
• Quality class: Q

Brief Information: PVT vented disc. The PVT disc uses, in its ventilation chamber, pillars instead of vanes. Disc cooling capacity is enhanced by an extra 40% and therefore provides more resistance against thermal cracking.

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Height [mm]: 44
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Centering Diameter [mm]: 68
• Bolt Hole Circle Ø [mm]: 114.3
• Wheel Bolt Bore Diameter [mm]: 15.8
• Number of Holes: 5
• Brake Disc Type: Vented
• Surface: Zink flake coated
• Supplementary Article/Info 2: with bolts/screws
• Quality: PREMIUM
• Required quantity: 2
• Name: PIDURIKETAS
• Manufacturer: MEY

General Information: MEYLE-PD brake disc with high-grade finish and brillant appearance: Modern cutting-edge coating technology for long lasting anti-corrosion protection. No degreasing needed, ready-to-fit. Easy rim disassembly due to coated mounting surfaces.

• Fitting Position: Rear Axle
• Supplementary Article/Supplementary Info: with accessories
• Centering Diameter [mm]: 30
• Brake Disc Type: solid
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Number of Holes: 5
• Tightening Torque [Nm]: 200
• Supplementary Article/Info 2: with wheel bearing kit, with ABS sensor ring
• Outer Diameter [mm]: 290
• Height [mm]: 91
• Technical Information: Nut and dust cap included.
• Manufacturer: LPR

• Fitting Position: Rear Axle
• Brake Disc Type: solid
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Number of Holes: 5
• Supplementary Article/Info 2: with wheel bearing kit, with ABS sensor ring
• Surface: Coated

• Fitting Position: Front Axle
• Quantity per packing unit: 2
• Brake Disc Type: Externally Vented
• Machining: High-carbon
• Surface: Coated
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Height [mm]: 44
• Rim Hole Number: 5
• Bolt Hole Circle Ø [mm]: 114
• Centering Diameter [mm]: 68
• Minimum thickness [mm]: 25.4
• Weight [kg]: 9.3
• Hole Arrangement/Number: 7/5
• Manufacturer: ZIMMERMANN

• Construction Year from: 11.2016
• Fitting Position: Rear Axle
• Piduriketta liik: täis
• Pidurikettajämedus [mm]: 11
• Välisläbimõõt [mm]: 290
• Kõrgus (mm): 91,5
• Tsentri läbimõõt (mm): 62
• Veljeaukude hulk: 5
• Piirangutega toode/piirangu info 2: koos rattalaagriga, koos ABS-andurirõngaga
• Name: Piduriketas
• Manufacturer: MAX

• Fitting Position: Front Axle
• Brake Disc Type: Externally Vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Height [mm]: 44
• Minimum thickness [mm]: 25.4
• Machining: High-carbon
• Surface: Coated
• Bolt Hole Circle Ø [mm]: 114.3
• Centering Diameter [mm]: 68
• Hole Arrangement/Number: 05/07
• Supplementary Article/Info 2: without wheel hub, without wheel studs
• Weight [kg]: 9.3
• Assy./disassy. by qualified personnel required!:
• Name: HE 8DD355129111
• Manufacturer: HELLA PAGID

• Fitting Position: Front Axle
• Quantity per packing unit: 2
• Brake Disc Type: Externally Vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Height [mm]: 44
• Minimum thickness [mm]: 25.4
• Surface: Coated
• Inner Diameter [mm]: 147.7
• Bolt Hole Circle Ø [mm]: 114.3
• Centering Diameter [mm]: 68
• Hole Arrangement/Number: 05/07
• Wheel Bolt Bore Diameter [mm]: 15.7
• Packaging length [cm]: 32.8
• Packaging width [cm]: 32.8
• Packaging height [cm]: 10.5
• Weight [kg]: 9.3
• Name: PIDURIKETAS
• Manufacturer: TEX

Supplementary Article/Info 2: without wheel hub, without wheel bearing, without wheel studs

• Construction Year from: 01.2017
• Fitting Position: Rear Axle
• Test Mark: ECE-R90
• Height [mm]: 90.2
• Brake Disc Type: solid
• Brake Disc Thickness [mm]: 11
• Outer Diameter [mm]: 290
• Number of Holes: 5
• Centering Diameter [mm]: 66
• Supplementary Article/Info 2: with ABS sensor ring, with wheel bearing
• Manufacturer: METELLI UKL.HAMULCOWY
• Quantity per packing unit: 2

• Brake Disc Thickness [mm]: 11
• Rim Hole Number: 5
• Thickness [mm]: 90
• Outer Diameter [mm]: 290
• Bolt Hole Circle Ø [mm]: 114
• Surface: Oiled
• Brake Disc Type: solid
• Fitting Position: Rear Axle
• Minimum thickness [mm]: 9.5
• Centering Diameter [mm]: 52
• Weight [kg]: 8
• Supplementary Article/Info 2: with ABS sensor ring
• Observe service information:
• Manufacturer: FEBI

General Information: These products are designed to be used as originally intended and not modified for purpose. Please ensure the products are installed by a competent individual. N.B. products are usually supplied without fitting instructions.

• Fitting Position: Front Axle
• Quantity per packing unit: 2
• Test Mark: E1 90R-02C0592/1866
• Brake Disc Type: Vented
• Number of Holes: 5
• Supplementary Article/Info 2: without ABS sensor ring, without wheel bearing
• Machining: Untreated
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25
• Centering Diameter [mm]: 68
• Height [mm]: 44
• Quality class: PJ
• Name: Brake discs

• Fitting Position: Front Axle
• paired article number: 573673J
• Brake Disc Type: Vented
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Supplementary Article/Info 2: with bolts/screws
• Height [mm]: 44.2
• Bolt Hole Circle Ø [mm]: 114.3
• Centering Diameter [mm]: 68
• Number of Holes: 5
• Quantity Unit: Piece
• Surface: Coated
• Version: JC
• Weight [kg]: 20.91
• Minimum thickness [mm]: 25.4
• Tightening Torque [Nm]: 105
• Packing Type: Carton
• Packaging length [cm]: 33
• Packaging width [cm]: 33
• Packaging height [cm]: 7
• Manufacturer: JURID

• Minimum thickness [mm]: 9.5
• Brake Disc Type: solid
• Inner Diameter 1 [mm]: 30
• Number of Holes: 5
• Width 1 [mm]: 90
• Tightening Torque [Nm]: 220
• Brake Disc Thickness [mm]: 11
• Outer Diameter [mm]: 290
• Article number of the recommended special tool: Clas : OM4217, Clas : OM8154
• Fitting Position: Rear Axle Right, Rear Axle Left
• Manufacturer: SNR
• Name: SN KF155.132U
• Additional information: KF155.132U SNR
• Lisainfo: KF155.132U SNR

• Fitting Position: Front Axle
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Minimum thickness [mm]: 25.4
• Brake Disc Type: Vented
• Machining: Alloyed/High-carbon
• Surface: Coated
• Number of Holes: 5
• Supplementary Article/Info 2: with bolts/screws
• MAPP code available:
• Bolt Hole Circle Ø [mm]: 114.3
• Height [mm]: 44
• Centering Diameter [mm]: 68
• Inner Diameter [mm]: 147.7
• Bore Diameter [mm]: 15.8
• Test Mark: E1 90R-02C0118/0573
• Name: PIDURIKETAS
• Manufacturer: ATE
• Quantity per packing unit: 2
• Quality class: Q

• Fitting Position: Front Axle
• Quantity per packing unit: 2
• Brake Disc Type: Externally Vented, Perforated
• Machining: High-carbon
• Surface: Coated
• Outer Diameter [mm]: 320
• Brake Disc Thickness [mm]: 28
• Height [mm]: 44
• Rim Hole Number: 5
• Bolt Hole Circle Ø [mm]: 114
• Centering Diameter [mm]: 68
• Test Mark: KBA 60872
• Minimum thickness [mm]: 25.4
• Weight [kg]: 9.3
• Hole Arrangement/Number: 7/5
• Manufacturer: ZIMMERMANN

• Fitting Position: Rear Axle
• Outer Diameter [mm]: 290
• Height [mm]: 91
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Centering Diameter [mm]: 52.4
• Bolt Hole Circle Ø [mm]: 114.3
• Number of Holes: 5
• Brake Disc Type: solid
• Required quantity: 2
• Name: Piduriketas
• Manufacturer: MEY

Supplementary Article/Info 2: with integrated wheel bearing, with ABS sensor ring

• Fitting Position: Rear Axle
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Height [mm]: 90.1
• Rim Hole Number: 5
• Brake Disc Type: solid
• Centering Diameter [mm]: 52
• Bolt Hole Circle Ø [mm]: 114.3
• Supplementary Article/Info 2: with ABS sensor ring
• Weight [kg]: 8.7
• Hub Diameter [mm]: 153
• Installation Information: Important: Observe Fitting Instructions
• Manufacturer: ABS

• Fitting Position: Rear Axle
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Height [mm]: 91.5
• Bolt Hole Circle Ø [mm]: 114.3
• Brake Disc Type: solid
• Centering Diameter [mm]: 62
• Number of Holes: 5
• Surface: Coated
• Supplementary Article/Info 2: with wheel bearing, with ABS sensor ring
• fulfils ECE norm: ECE-R90
• Inner Diameter [mm]: 30
• Name: Piduriketas
• Manufacturer: BOS

• Fitting Position: Rear Axle
• Brake Disc Type: solid
• Brake Disc Thickness [mm]: 11
• Number of Holes: 5
• Height [mm]: 90
• Centering Diameter [mm]: 30
• Outer Diameter [mm]: 290
• Minimum thickness [mm]: 9.5
• Manufacturer: BREMBO HAMULCE
• Quantity per packing unit: 2
• Additional information: BR 08.C742.27
• Lisainfo: BR 08.C742.27

Supplementary Article/Info 2: with wheel bearing kit, with ABS sensor ring, with bolts/screws

• Fitting Position: Front Axle
• Brake Disc Type: perforated/vented
• Brake Disc Thickness [mm]: 28
• Number of Holes: 5
• Supplementary Article/Info 2: with bolts/screws
• Height [mm]: 44
• Centering Diameter [mm]: 68
• Outer Diameter [mm]: 320
• Machining: High-carbon
• Surface: Coated
• Minimum thickness [mm]: 26.1
• Tightening Torque [Nm]: 105
• Name: BR 09.B352.1X
• Manufacturer: BREMBO
• Quantity per packing unit: 2

Brief Information: PVT vented disc. The PVT disc uses, in its ventilation chamber, pillars instead of vanes. Disc cooling capacity is enhanced by an extra 40% and therefore provides more resistance against thermal cracking. General Information: The specific drilling of Brembo Xtra brake discs provides a brilliant and efficient performance in any braking condition, to emphasise the driving style of true enthusiasts.

• Fitting Position: Rear Axle
• Brake Disc Type: solid
• Surface: Coated
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Height [mm]: 91
• Centering Diameter [mm]: 52.3
• Stub Axle Diameter [mm]: 30
• Rim Hole Number: 5
• Bolt Hole Circle Ø [mm]: 114
• Supplementary Article/Info 2: with wheel bearing, with ABS sensor ring
• Test Mark: ECE R90 APPROVED
• Minimum thickness [mm]: 9.5
• Weight [kg]: 8
• Hole Arrangement/Number: 5/5
• Manufacturer: ZIMMERMANN
• Quantity per packing unit: 2

• Fitting Position: Rear Axle
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Brake Disc Type: solid
• Surface: Coated
• Number of Holes: 5
• Supplementary Article/Info 2: with wheel bearing, with ABS sensor ring
• Support plate diameter [mm]: 30
• Bolt Hole Circle Ø [mm]: 114.3
• Height [mm]: 91.1
• Centering Diameter [mm]: 52.3
• Inner Diameter [mm]: 62
• Thread Size: M12x1,5
• Test Mark: E1 90R-02C0444/2507
• MAPP code available:
• Name: Piduriketas
• Manufacturer: ATE
• Quantity per packing unit: 2
• Quality class: Q

• Fitting Position: Rear Axle
• Brake Disc Type: solid
• Outer Diameter [mm]: 290
• Brake Disc Thickness [mm]: 11
• Minimum thickness [mm]: 9.5
• Surface: Coated
• Height [mm]: 91.5
• Hole Arrangement/Number: 05/05
• Bolt Hole Circle Ø [mm]: 114.3
• Centering Diameter [mm]: 52.4
• Stub Axle Diameter [mm]: 30
• Supplementary Article/Supplementary Info: with axle nut
• Weight [kg]: 8.2
• Assy./disassy. by qualified personnel required!:
• Name: HE 8DD355133241
• Manufacturer: HELLA PAGID

Supplementary Article/Info 2: with ABS sensor ring, with wheel bearing, with wheel hub