Weight Weenies

Nickldn wrote: ↑

Sun Jun 04, 2023 10:14 am

Question:

Do you have enough weight over the front wheel? If your stem is quite short and/or stack high, and perhaps your saddle quite far back then you are looking at another possible cause of a twitchy front end when descending in windy conditions.

When I changed the stem on my Propel from 90mm to 110mm and moved the saddle forward a bit the bike became a lot less twitchy in general and less prone to crosswinds descending at high speed in particular.

If this is the root cause of the issue then a shallower front wheel won't help.

daninplymouth wrote: ↑

Sun Jun 04, 2023 10:50 am

Nickldn wrote: ↑

Sun Jun 04, 2023 10:14 am

Question:

Do you have enough weight over the front wheel? If your stem is quite short and/or stack high, and perhaps your saddle quite far back then you are looking at another possible cause of a twitchy front end when descending in windy conditions.

When I changed the stem on my Propel from 90mm to 110mm and moved the saddle forward a bit the bike became a lot less twitchy in general and less prone to crosswinds descending at high speed in particular.

If this is the root cause of the issue then a shallower front wheel won't help.

I would think so, I'm on a 100mm stem and have the saddle quite far forward. Also I weight about 92kg so have a bit weight on me. I do plan on lowering another 7.5mm in the coming weeks so will see if that makes any improvements

yingyu wrote: ↑

Sun Jun 04, 2023 5:18 am

Rim + tire profile would have a bigger impact on stability than 8mm depth change. External rim width 32mm seems like a good fit for 28c tire that measures 30mm.

Honestly I think wind stability is a premium feature that takes additional R&D, so unsurprisingly it's a gamble to order from FS or LB compared with established brands like Enve, Zipp, Bontrager.

yingyu wrote: ↑

Sun Jun 04, 2023 5:18 am

Rim + tire profile would have a bigger impact on stability than 8mm depth change. External rim width 32mm seems like a good fit for 28c tire that measures 30mm.

Honestly I think wind stability is a premium feature that takes additional R&D, so unsurprisingly it's a gamble to order from FS or LB compared with established brands like Enve, Zipp, Bontrager.