Source: work-wheels.co.jp

WORK Zeast BST1

Construction: 2-piece (Welded)
Assembly: welded
Country: Japan
Produced

Discontinued

Description

The WORK Zeast BST1 is a discontinued welded 2-piece wheel in Full Reverse design, available in 19-inch (7.5J–12.5J) and 20-inch (8.0J–12.5J). Four disc variants cover two concavity depths (Medium Concave and Deep Concave), each offered in a standard and deep-rim barrel option (Adisk, Hdisk, Odisk, Wdisk), all using a standard PCD of 5H-114.3 with 73.3mm hub bore. Offsets are orderable in 1mm increments within the published range. Certified to JWL-P735KG for the 20-inch size.

Disk Variants

Code	Name	PCDs
Adisk	Medium Concave	5×114.3
Hdisk	Medium Concave Deep Rim	5×114.3
Odisk	Deep Concave	5×114.3
Wdisk	Deep Concave Deep Rim	5×114.3

Custom PCD: available bolt patterns by diameter

Diameter	Disk variant(s)	PCD range
19″	Adisk, Hdisk, Odisk, Wdisk	5H-100〜120.65
20″	Adisk, Hdisk, Odisk, Wdisk	5H-100〜120.65

Offset / Configuration Matrix

19"

Width	Offset range (ET)	Rim depth range
7.5J	ET-17 – ET7	47 – 71 mm
8.0J	ET-23 – ET13	47 – 83 mm
8.5J	ET-30 – ET20	47 – 97 mm
9.0J	ET-36 – ET26	47 – 109 mm
9.5J	ET-42 – ET32	47 – 121 mm
10.0J	ET-49 – ET39	47 – 135 mm
10.5J	ET-55 – ET45	47 – 147 mm
11.0J	ET-61 – ET51	47 – 159 mm
11.5J	ET-68 – ET58	47 – 173 mm
12.0J	ET-74 – ET55	56 – 185 mm
12.5J	ET-80 – ET49	68 – 197 mm

20"

Width	Offset range (ET)	Rim depth range
8.0J	ET-19 – ET16	51 – 86 mm
8.5J	ET-26 – ET23	51 – 100 mm
9.0J	ET-32 – ET29	51 – 112 mm
9.5J	ET-38 – ET35	51 – 124 mm
10.0J	ET-45 – ET42	51 – 138 mm
10.5J	ET-51 – ET48	51 – 150 mm
11.0J	ET-57 – ET54	51 – 162 mm
11.5J	ET-64 – ET61	51 – 176 mm
12.0J	ET-70 – ET62	56 – 188 mm
12.5J	ET-76 – ET54	70 – 200 mm

19"

Width	Offset range (ET)	Rim depth range
7.5J	ET-4 – ET20	47 – 71 mm
8.0J	ET-10 – ET26	47 – 83 mm
8.5J	ET-17 – ET33	47 – 97 mm
9.0J	ET-23 – ET39	47 – 109 mm
9.5J	ET-29 – ET45	47 – 121 mm
10.0J	ET-36 – ET52	47 – 135 mm
10.5J	ET-42 – ET58	47 – 147 mm
11.0J	ET-48 – ET64	47 – 159 mm
11.5J	ET-55 – ET71	47 – 173 mm
12.0J	ET-61 – ET68	56 – 185 mm
12.5J	ET-67 – ET62	68 – 197 mm

20"

Width	Offset range (ET)	Rim depth range
8.0J	ET-9 – ET26	51 – 86 mm
8.5J	ET-16 – ET33	51 – 100 mm
9.0J	ET-22 – ET39	51 – 112 mm
9.5J	ET-28 – ET45	51 – 124 mm
10.0J	ET-35 – ET52	51 – 138 mm
10.5J	ET-41 – ET58	51 – 150 mm
11.0J	ET-47 – ET64	51 – 162 mm
11.5J	ET-54 – ET71	51 – 176 mm
12.0J	ET-60 – ET72	56 – 188 mm
12.5J	ET-66 – ET64	70 – 200 mm

19"

Width	Offset range (ET)	Rim depth range
7.5J	ET-20 – ET4	47 – 71 mm
8.0J	ET-26 – ET10	47 – 83 mm
8.5J	ET-33 – ET17	47 – 97 mm
9.0J	ET-39 – ET23	47 – 109 mm
9.5J	ET-45 – ET29	47 – 121 mm
10.0J	ET-52 – ET36	47 – 135 mm
10.5J	ET-58 – ET42	47 – 147 mm
11.0J	ET-64 – ET48	47 – 159 mm
11.5J	ET-71 – ET55	47 – 173 mm
12.0J	ET-77 – ET52	56 – 185 mm
12.5J	ET-83 – ET46	68 – 197 mm

20"

Width	Offset range (ET)	Rim depth range
8.0J	ET-30 – ET6	50 – 86 mm
8.5J	ET-37 – ET13	50 – 100 mm
9.0J	ET-43 – ET19	50 – 112 mm
9.5J	ET-49 – ET25	50 – 124 mm
10.0J	ET-56 – ET32	50 – 138 mm
10.5J	ET-62 – ET38	50 – 150 mm
11.0J	ET-68 – ET44	50 – 162 mm
11.5J	ET-75 – ET51	50 – 176 mm
12.0J	ET-81 – ET51	56 – 188 mm
12.5J	ET-87 – ET43	70 – 200 mm

19"

Width	Offset range (ET)	Rim depth range
7.5J	ET-10 – ET14	47 – 71 mm
8.0J	ET-16 – ET20	47 – 83 mm
8.5J	ET-23 – ET27	47 – 97 mm
9.0J	ET-29 – ET33	47 – 109 mm
9.5J	ET-35 – ET39	47 – 121 mm
10.0J	ET-42 – ET46	47 – 135 mm
10.5J	ET-48 – ET52	47 – 147 mm
11.0J	ET-54 – ET58	47 – 159 mm
11.5J	ET-61 – ET65	47 – 173 mm
12.0J	ET-67 – ET62	56 – 185 mm
12.5J	ET-73 – ET56	68 – 197 mm

20"

Width	Offset range (ET)	Rim depth range
8.0J	ET-16 – ET20	50 – 86 mm
8.5J	ET-23 – ET27	50 – 100 mm
9.0J	ET-29 – ET33	50 – 112 mm
9.5J	ET-35 – ET39	50 – 124 mm
10.0J	ET-42 – ET46	50 – 138 mm
10.5J	ET-48 – ET52	50 – 150 mm
11.0J	ET-54 – ET58	50 – 162 mm
11.5J	ET-61 – ET64	51 – 176 mm
12.0J	ET-67 – ET65	56 – 188 mm
12.5J	ET-73 – ET57	70 – 200 mm

2-piece welded construction: the centre disc is positioned steplessly within the stated range and then welded. Every offset within the range is orderable to the millimetre. Rim depth varies correspondingly. Submit corrections.

Finishes & Colors

Brilliant Silver Black BSB Brushed BRU

Accessories

Item	Part No.	Note
Center cap (Black)	`120224`	Included
Center cap (Silver)	`120246`
Center cap (Red)	`120247`
Pierce bolt (Gold)		Optional
Pierce bolt (Black)		Optional
Air valve (Black)		Optional
Air valve V24C	`180012`	Included with Order Inset 1
Air valve V39A	`180087`	Included with Order Inset 2
Air valve Black V24K	`180088`
Air valve Black V39K	`180089`

Construction

2-piece (Welded)

Centre disc is welded to the barrel. Width and offset are configured to the millimetre at order time within the stated range; once welded they are fixed.

Notes

All variants use 5H-114.3 (hub bore 73.3mm) as standard PCD; custom PCDs available via special order. Adisk and Hdisk are Medium Concave; Odisk and Wdisk are Deep Concave. Hdisk and Wdisk are deep-rim barrel variants. Rim exchange supported. 20-inch certified to JWL-P735KG.

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