August 9, 20215 yr Hello, I broke the hub on my beta last week. The 4 mounting points for the sproket broke off. Anyone else had these issues? I bought it of a mate in the UK and used it not that much. I ride the level under expert in Belgium club trials. UK importer will put a new hub in my wheel so no complaints there ! Is there anything i could do to make sure it doesnt happen again ? Kind regards Bob
August 9, 20215 yr I know someone who had the same kind of failure. He suspects that the sprocket bolts got loose and led to the failure so was extra careful with reassembly using good, bolts, washer, thread locker, etc. It sounds like lacing those rims is no easy task.
August 9, 20215 yr There are no superfluous fasteners on a modern day trials motorcycle ( all brands ) Modern day trials motorcycles need all of their nuts and bolts to be tight, so that everything works properly. The ONLY way to be sure that the nuts and bolts are tight is to check them. Particular attention should be given to brake disc bolts and rear sprocket bolts.
August 10, 20215 yr 19 hours ago, mcman56 said: I know someone who had the same kind of failure. He suspects that the sprocket bolts got loose and led to the failure so was extra careful with reassembly using good, bolts, washer, thread locker, etc. It sounds like lacing those rims is no easy task. I expect the cause is something to do with a 'lighter' design of rear sprocket that is 'open' between the sprocket fixings, unlike a continuous ring of metal, around all of the 4 sprocket bolts, that features on older bikes Edited August 10, 20215 yr by johnnyboxer
August 10, 20215 yr Author 21 minutes ago, johnnyboxer said: I expect the cause is something to do with a 'lighter' design of rear sprocket that is 'open' between the sprocket fixings, unlike a continuous ring of metal, around all of the 4 sprocket bolts, that features on older bikes That may well be the case here, i had one of those sprockets on my bike. My bolts were tight, i got the bolts replaced by better quality ones and locknuts when i got the bike. on the new hub i will fit an older style sprocket
August 10, 20215 yr 4 hours ago, lineaway said: Also runnimg your chaIn too tight can do it. Good info !
August 10, 20215 yr Excellent customer care by Lampkins. One hears anecdotal stories from time to time but here's some confirmation that the stories must be true!
August 13, 20215 yr Author a mate is on his 3th rear hub now, every time replaced in warranty. So there must be something wrong with those hubs, nothing wrong with beta service. Does enyone know if an other brand rear wheel would fit into a beta ?
August 13, 20215 yr 16 minutes ago, bobb said: a mate is on his 3th rear hub now, every time replaced in warranty. So there must be something wrong with those hubs, nothing wrong with beta service. Does enyone know if an other brand rear wheel would fit into a beta ? This will be one of the reasons Jitsie supply solid rear sprockets https://www.jitsie.com/en/rear-sprockets/46364-closed-rear-sprocket-bt2806.html
August 13, 20215 yr 1 hour ago, Neil Livewire said: This will be one of the reasons Jitsie supply solid rear sprockets https://www.jitsie.com/en/rear-sprockets/46364-closed-rear-sprocket-bt2806.htm You would think Beta would inform customers to only use solid sprockets ?
August 14, 20215 yr OK - I am a bit thick here. What difference does the sprocket make? The forces on the hub are the same irrespective of the format of the sprocket surely?
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