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post #1 of 20 (permalink) Old 12-06-2012, 10:25 PM Thread Starter
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Rear Hub - changed design???

Can anyone enlighten me on the change to the rear hub on T100's?

I have a vague memory of reading the the hub design was changed due to breaking spokes.

I ordered new stainless spokes from Buchanan's and when we went to fit them we discovered that the spokes have a 90 degree bend where as my OEM hub needs straight spokes.

My bike is listed as a 2008 (02/08) and I ordered spokes for a 2008 rear wheel. I don't think it's Buchanan's fault BTW and the front spokes fit beautifully

Any thoughts or info (I may also have a set of rear spokes for sale if return postage is as expensive as I fear)

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post #2 of 20 (permalink) Old 12-06-2012, 10:41 PM
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Here are some links I found after doing a quick google search.

http://www.triumphrat.net/twins-tech...-uk-twins.html

http://www.triumphrat.net/twins-tech...r-t-100-a.html

http://forums.delphiforums.com/n/mai...e&msg=20387.39

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post #3 of 20 (permalink) Old 12-07-2012, 04:40 AM
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Quote:
Originally Posted by JollyRgr View Post
Can anyone enlighten me on the change to the rear hub on T100's?

I have a vague memory of reading the the hub design was changed due to breaking spokes.

I ordered new stainless spokes from Buchanan's and when we went to fit them we discovered that the spokes have a 90 degree bend where as my OEM hub needs straight spokes.

My bike is listed as a 2008 (02/08) and I ordered spokes for a 2008 rear wheel. I don't think it's Buchanan's fault BTW and the front spokes fit beautifully

Any thoughts or info (I may also have a set of rear spokes for sale if return postage is as expensive as I fear)
I have an 08 bonnie and the rear spokes are straight the fronts have a 90 deg bend at the hub. My bike was the last of its colour in Aus with carbs. Friend has a thrux 865 and i think it is @06 his has the spokes with the 90 deg bend for the rear hub. His engine has the non black finish sorta silvery/grey.
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post #4 of 20 (permalink) Old 12-07-2012, 05:30 AM Thread Starter
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Thanks for the info guys

'Never attribute to malice that which can be adequately explained by stupidity!'
2008 B/W T100, AI gone, BCARK-135/42 jets, 19t sprocket, Staintune R/C, D9 gauge/ignition bracket, 7" Hella lamp +80% bulb, Dart F/Screen, 'Piemaned' and loving it!!
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post #5 of 20 (permalink) Old 12-07-2012, 05:47 AM
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Mines a late 08 Bonnie and has the old pattern rear hub so I guess they were using up old stock
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post #6 of 20 (permalink) Old 12-07-2012, 10:48 AM
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FWIW my T100 is titled as an '08 with a manufacturing date of 11/07 and came with the redesigned rear hub.

Chris / RudeBoy BIR #309
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post #7 of 20 (permalink) Old 12-07-2012, 04:04 PM
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The change took place in '08 - you'll find some '08's in the U.S. with the old design rear hub and others that have the redesigned rear hub that takes straight pull spokes - which is a stronger design. While I don't think Triumph ever responded to complaints of broken spokes on the old design rear hubs, the fact that the hub got redesigned and uses straight pull spokes speaks volumes.
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post #8 of 20 (permalink) Old 12-07-2012, 06:25 PM
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The change took place when Triumph cancelled their wheel building contract with Central Wheels in England and moved it to one of their Thai factories. When challenged over the change in rear hub design they said it was simply down to a change in supplier and not the alleged poor performance of the previous design (yeah, right). By the way, the straight spoke hub is not a new design. Triumph have previously used it on rear wheels for bikes, such as the Adventurer and older Tigers, whose wheels were built by Central Wheels, and don't have a reputation for breaking spokes...

Paul.

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Last edited by PAAS; 12-07-2012 at 06:28 PM.
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post #9 of 20 (permalink) Old 12-08-2012, 10:25 AM
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Some very interesting info PAAS..........
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post #10 of 20 (permalink) Old 12-08-2012, 11:05 AM
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Quote:
Originally Posted by grebmrof View Post
. . . While I don't think Triumph ever responded to complaints of broken spokes on the old design rear hubs, the fact that the hub got redesigned and uses straight pull spokes speaks volumes.
We're well into the pepetuation of urban legend here.

There was no weakness in the original design. No one here has ever had (or knows anyone who's ever had) a failure of the Bonneville's rear hub that could be attributed to the design. Some people did notice, though, that the spokes broke at the bend rather than at the hub in cases of massive overstressing, including that due to accidents such as encounters with curbs or potholes that heavily damaged the wheel.

There is no such thing as a wheel design that is invulnerable to such damage.

The bottom line is that your pre modification rear wheel is not going to fail on you. It's no reason to pass on the purchase of an otherwise sound used Bonneville. If this had been any kind of a problem at all, a DOT initiatied recall would have been issued long ago. There's been no such recall, anywhere in the world. The rear wheels on even the high mileage Bonnevilles are doing just fine.

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