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  #1  
Old 1st February 2020
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Default Wheel weight.

Here we go again. Got give a set of alloy wheels that fit my bike. The bike came with spoked but the rear one had a tendency to loosen them so I fitted a Fatboy soild as a "temporary measure. The solid wheel was about 0.5kg+innertube lighter. By feel the "cart wheel" type alloy back is at least that much lighter. The fronts I haven't compared yet. Hopefully it will be lighter as well and quicken the steering a bit more.

I'll put the weights here when I'm finished with the swap as a reference. Just waiting for new wheel bearings. If anybody knows anything I should keep an eye out for on these wheels then I'd appreciate any tips.
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Old 1st February 2020
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Are you saying you have a solid alloy wheel for the front? What size? Picture?
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Old 1st February 2020
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No, it's one of the cartwheel type to go on the front.
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Old 16th February 2020
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Here are the results for Part 1 of the experiment.

Rear wheel weights:

Early "cartwheel" alloys - 7kg
Spoked wheel - 8.4kg
Fatboy solid - 8.8kg

Remember that on top of the spoked wheel weight you need to add the weight of the inner tube. These weights are with all bearings but no sprocket or disk.

Impressions: A while ago I got a hold of the Fatboy wheel and fitted it after the spocked rim started loosening spokes regularly. At the time I posted and appear to have got the weights mixed up. I thought the Fatboy wheel was lighter. It certainly felt that way on the road so I would think the flywheel inertia is less than the spoked wheel, also it had no inner tube. Probably due to the fatboy alloy being more true it felt smoother too.

Today I replaced the Fatboy alloy with the original cartwheel type alloy which is 1.8kg lighter. At the same time the bike got a new tyre, a Maxxis instead of a Continental, so the comparison is not a straight one against the other. Also the chain got a lube.

Out on the road there initially didn't feel much difference. After a ride around though the bike felt "lighter". Acceleration felt a touch quicker and the engine note not so high. The Maxxis is a bit sharper in profile so the bike definitely liked changing direction quicker. The front end now feels ever so slightly lazy when I initiate a direction change now. I would swear that the speed bumps were more comfortable too!

I'm looking forward to getting the front wheel done now. Just waiting on a new front tyre arriving.
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Old 4 Weeks Ago
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'S'pose I better wrap this one up. Haven't got a weight for the front wheel as the scales died! I would guess at about a kilo lighter. I also had to shorten the bearing spacer on this wheel. On the road with the alloy wheels the bike is noticeably quicker, feels like better throttle response. The difference is most noticeable at low speeds and in traffic where the bike is much more stable. This is probably through a truer wheel compared a 26 year old spoked wheel that has been adjusted many times over the years. The weight bias is now more noticeable, the bike has always felt heavier on the left when stopping and that feeling is more noticeable now, probably due to less slack and a truer wheel. General handling is quicker and more precise so you can hustle the thing along a lot quicker and you don't have to be so heavy handed. It ain't no Ducati but the lighter wheels definitely make for a quicker, sweeter bike.
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