GB Arbor Pro are a professional replacement nose bar designed for commercial users. Ideal for small - medium chainsaws.  GB Arbor-Pro features a one piece solid steel body specially heat treated and hardened. Its high-tech nose sprocket runs on precision Swiss bearings. 

• Length 20 inch
• Drive link count 78
• Pitch .325"
• Gauge .050"
• Mount PO - A041
• Model PO20-50MH

Fits chainsaw models with .325" pitch drive sprocket fitted*.

HOMELITE - New Models: CSP4518, CSP4520

HOMELITE - Previous Models: 25, 27, 27AV, 4100, 4150, 4500, 4550, Timberman

POULAN & POULAN PRO: 1220, 1425, 1625, 180, 1800, 190, 20, 200, 2000, 205, 2050, 2100, 2150, 222, 225, 2250, 2300, 235, 2350, 2375, 2375, 2400, 2450, 25 SERIES, 250, 2500, 255, 255, 2550, 260, 2700, 2750, 2775, 2800, 285, 285, 2900, 295, 295, 3000, 305, 305, 3050, 306, 306, 310, 310, 3100, 315, 325, 3300, 335, 335, 3350, 336, 336, 523, ES400, PP210, PP260, PP295, PP300E, PP310, PP335

RYOBI: PCN4040, PCN4040KB, PCN4545, PCN4545KB, PCN4550

SHINDAIWA: 100, 102, 103, 104, 105, 107, 110, 113, 117, 140, 160, 291, 300, 301, 305, 340, 345, 346, 350, 355, 357, 360, 366, 377, 391, 394, 400, 401, 415, 416, 420, 440, 446, 450, 451, 488, 500, 510, 560, E120, E150, E180, EYB120, EYB150, EYB180, YB291, YB3, YB301

*Please check your chainsaw drive sprocket is .325" pitch.