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Many chains have the chain size stamped directly on the chain links.
Chain sizes #'s 35, 40, 41 & 420 are used in the Fun Kart and Mini Bike Industry.
An 11 or 12 tooth clutch sprocket usually indicates the use of # 35 chain.
A 10 tooth clutch sprockets usually indicates the use of #'s 40, 41 or 420 chain.
Make sure you order enough chain, any extra links can always be removed.

Roller Chain
Code Name Image Price  
383 CHAIN C-25 10' ROLL, OEM #: C-25 CHAIN C-25 10' ROLL, OEM #: C-25 $28.95
384 Roller Chain #35 Fits GoCart & Mini Bike 10 ft Roll Roller Chain #35 Fits GoCart & Mini Bike 10 ft Roll $29.98
385 CHAIN C-40 10' ROLL, OEM #: C-40 CHAIN C-40 10' ROLL, OEM #: C-40 $28.95
386 CHAIN C-41 10' ROLL, OEM #: C-41 CHAIN C-41 10' ROLL, OEM #: C-41 $18.95
387 CHAIN C-42-10' ROLL, OEM #: C-42 CHAIN C-42-10' ROLL, OEM #: C-42 $19.95
388 CHAIN C-43 10' ROLL, OEM #: C-43 CHAIN C-43 10' ROLL, OEM #: C-43 $12.95
389 CHAIN C-50 10' ROLL, OEM #: C-50 CHAIN C-50 10' ROLL, OEM #: C-50 $44.95
390 CHAIN C-60 10' ROLL, OEM #: C-60 CHAIN C-60 10' ROLL, OEM #: C-60 $57.95
392 CHAIN C-420 10' ROLL, OEM #: C-420 CHAIN C-420 10' ROLL, OEM #: C-420 $31.95
393 CHAIN C-428 10' ROLL, OEM #: C-428 CHAIN C-428 10' ROLL, OEM #: C-428 $36.95
394 CHAIN C-35 100' ROLL, OEM #: C-35 CHAIN C-35 100' ROLL, OEM #: C-35 $179.95
395 CHAIN C-41 100' ROLL, OEM #: C-41 CHAIN C-41 100' ROLL, OEM #: C-41 $188.95
5811 CHAIN C-40 100' ROLL, OEM #: COL-40 CHAIN C-40 100' ROLL, OEM #: COL-40 $285.00
9317 C-40 Chain, Size 1/2" x 5/16" Length 4 Ft., OEM #: C-40 C-40 Chain, Size 1/2" x 5/16" Length 4 Ft., OEM #: C-40 $8.95
9318 C-40 Chain, Size 1/2" x 5/16" Length 3 Ft, OEM #: C-40 C-40 Chain, Size 1/2" x 5/16" Length 3 Ft, OEM #: C-40 $8.95
9319 Roller Chain # 41 For GoCart & Mini Bike Roller Chain # 41 For GoCart & Mini Bike $9.95
9320 C-41 Chain, Size 1/2"" x 1/4"" Length 3 Ft, OEM #: C-41 C-41 Chain, Size 1/2"" x 1/4"" Length 3 Ft, OEM #: C-41 $8.95
9321 Roller Chain # 35 GoCart & Mini Bike Length: 48" Roller Chain # 35 GoCart & Mini Bike Length: 48" $10.98
9322 Roller Chain, Size 3/8" x 3/16" Length 36" Fits MiniBike & GoKart Roller Chain, Size 3/8" x 3/16" Length 36" Fits MiniBike & GoKart $8.98
9867 CHAIN C-420 100' ROLL   $292.34