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The ring itself is pretty thick at the bolts but Saints come with alloy bolts which can't be as strong as the usual bmx cromo/stainless ones. I reckon one of the bolts has snapped and the ring has then done likewise. The problem with the 4-bolt design is that if one bolt fails it makes almost 1/2 the ring unsupported, whereas with a 5-bolt design it's far less and the other bolts have a better chance of keeping it all together.
Quote from: kennyhunter6061 on February 27, 2008, 07:00 PMThe ring itself is pretty thick at the bolts but Saints come with alloy bolts which can't be as strong as the usual bmx cromo/stainless ones. I reckon one of the bolts has snapped and the ring has then done likewise. The problem with the 4-bolt design is that if one bolt fails it makes almost 1/2 the ring unsupported, whereas with a 5-bolt design it's far less and the other bolts have a better chance of keeping it all together.That all makes perfect sense, spot on Id say.Good old Shimano. What do they know about BMX anymore anyway? (ooohhhhh )
I sometimes run a 36/13 on my racebike and have broken a few chains off the gate.When I watch some of the local street riders come down to my track with 25/9,they seem to pedal like hell but go nowhere!