- Description
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Details
MAP Cycle is proud to offer our 4340 H beam connecting rods. The exotic 4340 forged steel makes for a lifetime rod.
Fits:
- Norton Commando (all models 1967-77)
- Norton Atlas (1963-68)
- Norton G15
- Norton N15 (1967-68)
- Norton P11A/Ranger (1967-68)
Features:
- Sold in matched pairs - balanced to +/- 1 gram
- Unmatched quality - the best rods available anywhere for Triumph
- "Solid Works" designed and stress tested
- Machined from 4340 forging
- Shot peened for stress relief
- ARP2000 bolts (220,000 lb. tensile strength)
- Innovative machined piston oil squirting notches
- Double wrist pin oilers
- Unique reinforced small end critical areas without adding excess weight or cost
Finite element analyses design by High Cotton MotoWorks allows for:
- Re-shaped pin boss for added strength (helps prevent "pin flex"& small-end failure)
- Double “forced” pin oilers to reduce friction and piston pin heat
- Bushed small end (replaceable) eliminating the need for fragile and expensive DLC pins
- Optimized big-end and pin boss for strength with important weight reduction compared to other steel rods
Note:
- Unlike the stock Norton rods, our H-Beam rods have been designed without a big end oiling hole because it is not necessary. Other oiling systems take place of the hole in the big end.
Customer Comments:
- "Your con rods arrived yesterday. They are a thing of beauty!! All perfect! I am extremely impressed with the quality machining and workmanship. Bryce, Queensland, Australia.
- Beautiful! I never thought I could feel this way over connecting rods! guitarguy....eBay purchase
- Brilliant workmanship! eBay purchase Kal...
Additional Information
Material 4340-Forged Style H-Beam Big End Weight 320.9 grams Small End Weight 109 grams Manufacture MAP Cycle Center To Center 5.875" Pin Size .686" Big End Shell B2101LC SKU MAP7067 - Additional Information
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Additional Information
Material 4340-Forged Style H-Beam Big End Weight 320.9 grams Small End Weight 109 grams Manufacture MAP Cycle Center To Center 5.875" Pin Size .686" Big End Shell B2101LC SKU MAP7067 - Reviews
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Write Your Own Review
- Fitment Information
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Norton Models
- Norton Atlas 745 1962 - 1969
- Norton Atlas Scrambler 1964
- Norton Commando 750 1968
- Norton Commando 750R 1969 - 1970
- Norton Commando Fastback 750 1969 - 1973
- Norton Commando Fastback 850 1973
- Norton Commando Fastback LR 750 1971 - 1973
- Norton Commando Hi-Rider 750 1971 - 1975
- Norton Commando Hi-Rider 850 1973 - 1974
- Norton Commando Interstate 750 1972 - 1973
- Norton Commando Interstate 850 1973 - 1974
- Norton Commando Interstate Combat 50 1972
- Norton Commando John Player 850 1973 - 1975
- Norton Commando MK III Hi-Rider 850 1975
- Norton Commando MK III Interstate 850 1975 - 1977
- Norton Commando MK III Roadster 850 1975 - 1977
- Norton Commando Production Racer 750 1971 - 1973
- Norton Commando Roadster 750 1971 - 1973
- Norton Commando Roadster 850 1973 - 1974
- Norton Commando Roadster Combat 750 1972
- Norton Commando Scrambler 750 1971
- Norton Commando Scrambler 750S 1969 - 1970
- Product Question
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Product Questions
Are there any clearance issues with these Norton rods. I am in the process of fitting a set of map alloy rods and are having issues with clearance in the cylinder slot and the `bolt head` scrapping the cases. as such I am not keen on fitting them to a standard motor. are there any issues with the big end clearance on the steel rods - Shipping Estimation
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