I have extensive catalogues going from 1952-1975 covering every motorcycle & some cars that were fitted with Renold chain by their manufacturers. There are too many options available to list without transcribing 1000s of records.
Digitally enhanced copies of the official trade catalogues are available for purchase. £5 each for the 1952-1962 and 1963-1975 versions or £9 for the pair. I found the originals of these in the bin as an apprentice and haven't seen them anywhere else. These were only available to dealers so it's likely not many survived. After spending weeks cleaning up high resolution scans, I've printed them on quality paper with front & back on card. The pages were then stapled & bound in a rigid spine with a clear plastic cover for that extra oily fingerprint protection. Perfect addition to a classic biker workshop !
If you don't want to splash out the cash, email me with your bike make, model, year at classic@chains.guru & I'll look up your correct chain details no charge.
All motorcycle chains share a common ancestry from the original Renold chain. They came up with the first numbering system and although other codes have been created along the way, the Renold codes are still the most common. Below is a simple cross reference chart of the chains most likely fitted to your classic motorcycle.
Pitch (Pin to Pin) |
Width Between Plates |
Roller Diameter | Size Code | ||||||||
Inch | Metric | Inch | Metric | Inch | Metric | Renold | ISO | Other | |||
1.Simple | 8mm | 0.315 | 8.00 | 0.118 | 3.00 | 0.197 | 5.00 | 110 500 | 05B-1 | ||
1.Simple | 3/8" | 0.375 | 9.525 | 0.155 | 3.94 | 0.250 | 6.35 | 110 037 | |||
1.Simple | 3/8" | 0.375 | 9.525 | 0.225 | 5.72 | 0.250 | 6.35 | 110 038 (GY06B1) | 06B-1 | ||
1.Simple | 1/2" | 0.50 | 12.7 | 0.130 | 3.30 | 0.305 | 7.75 | 111 044 | |||
1.Simple (Coventry) | 1/2" | 0.50 | 12.7 | 0.130 | 3.30 | 0.305 | 7.75 | 111 048 | |||
1.Simple | 1/2" | 0.50 | 12.7 | 3/16 | 0.192 | 4.88 | 0.305 | 7.75 | 111 046 | 415 | |
1.Simple (Coventry) | 1/2" | 0.50 | 12.7 | 3/16 | 0.192 | 4.88 | 0.305 | 7.75 | 111 049 | 415 | |
1.Simple (Coventry) | 1/2" | 0.50 | 12.7 | 3/16 | 0.192 | 4.88 | 0.305 | 7.75 | 112 045 | 415 | |
1.Simple | 1/2" | 0.50 | 12.7 | 0.205 | 5.21 | 0.335 | 8.51 | 110 044 (GY08B1NA) | |||
1.Simple (Coventry) | 1/2" | 0.50 | 12.7 | 1/4" | 0.250 | 6.35 | 0.305 | 7.75 | 112 046 | 420 | |
1.Simple | 1/2" | 0.50 | 12.7 | 0.305 | 7.75 | 0.305 | 7.75 | 110 046 | |||
1.Simple | 1/2" | 0.50 | 12.7 | 0.305 | 7.75 | 0.335 | 8.51 | GY08B1 | 08B-1 | ||
1.Simple | 1/2" | 0.50 | 12.7 | 5/16" | 0.3125 | 7.94 | 0.312 | 7.92 | 425 | ||
1.Simple (GP) | 5/8" | 0.625 | 15.875 | 1/4" | 0.255 | 6.48 | 0.400 | 10.16 | 119 058 (GY10B1NA) | ||
1.Simple (Mark 10) | 5/8" | 0.625 | 15.875 | 1/4" | 0.255 | 6.48 | 0.400 | 10.16 | 110 054 | 520 | |
1.Simple | 5/8" | 0.625 | 15.875 | 5/16" | 0.3125 | 7.94 | 0.400 | 10.16 | 525 | ||
1.Simple (GP) | 5/8" | 0.625 | 15.875 | 3/8" | 0.380 | 9.65 | 0.400 | 10.16 | 119 059 (GY10B1) | 10B-1 | 530 |
1.Simple (Mark 10) | 5/8" | 0.625 | 15.875 | 3/8" | 0.380 | 9.65 | 0.400 | 10.16 | 110 056 | 10B-1 | 530 |
1.Simple | 3/4" | 0.75 | 19.05 | 3/8" | 0.375 | 9.53 | 0.469 | 11.91 | 630 | ||
1.Simple | 3/4" | 0.75 | 19.05 | 0.46 | 11.68 | 0.475 | 12.07 | 110 066 (GY12B1) | 12B-1 | ||
1.Simple | 1" | 1.00 | 25.4 | 0.67 | 17.02 | 0.625 | 15.88 | GY16B1 | 16B-1 | ||
1.Simple | 1 ¼" | 1.25 | 31.75 | 0.77 | 19.56 | 0.750 | 19.05 | GY20B1 | 20B-1 | ||
1.Simple | 1 ½" | 1.50 | 38.1 | 1" | 1.00 | 25.40 | 1.000 | 25.40 | GY24B1 | 24B-1 | |
2.Duplex | 0.315 | 8.00 | 0.118 | 3.00 | 0.197 | 5.00 | 114 500 | ||||
2.Duplex | 3/8" | 0.375 | 9.525 | 0.225 | 5.72 | 0.250 | 6.35 | 114 038 (GY06B2) | 06B-2 | ||
2.Duplex | 1/2" | 0.50 | 12.7 | 0.305 | 7.75 | 0.335 | 8.51 | 114 046 (GY08B2) | 08B-2 | ||
2.Duplex | 5/8" | 0.625 | 15.875 | 3/8" | 0.380 | 9.65 | 0.400 | 10.16 | GY10B2 | 10B-2 | |
2.Duplex | 3/4" | 0.75 | 19.05 | 0.46 | 11.68 | 0.475 | 12.07 | GY12B2 | 12B-2 | ||
2.Duplex | 1" | 1.00 | 25.4 | 0.67 | 17.02 | 0.625 | 15.88 | GY16B2 | 16B-2 | ||
2.Duplex | 1 ¼" | 1.25 | 31.75 | 0.77 | 19.56 | 0.750 | 19.05 | GY20B2 | 20B-2 | ||
2.Duplex | 1 ½" | 1.50 | 38.1 | 1" | 1.00 | 25.40 | 1.000 | 25.40 | |||
3.Triplex | 3/8 | 0.375 | 9.525 | 0.225 | 5.72 | 0.250 | 6.35 | 116 038 |