991.2 GT3 sell now or keep dilemma
Discussion
Cheib said:
I think there’s a difference in the steering too...that’s a bit more nuanced but it does feel lighter I guess to a good driver it would provide more feel, not claiming that for myself 
A lighter spinning wheel has less angular momentum and is easier to redirect than a heavier spinning wheel.v8ksn said:
Cheib said:
I think there’s a difference in the steering too...that’s a bit more nuanced but it does feel lighter I guess to a good driver it would provide more feel, not claiming that for myself
A lighter spinning wheel has less angular momentum and is easier to redirect than a heavier spinning wheel.Cheib said:
v8ksn said:
Cheib said:
I think there’s a difference in the steering too...that’s a bit more nuanced but it does feel lighter I guess to a good driver it would provide more feel, not claiming that for myself
A lighter spinning wheel has less angular momentum and is easier to redirect than a heavier spinning wheel.As someone else said earlier, take a front wheel of a bicycle, bear in mind much of the mass in right in the hub itself, and give it a good spin while holding the axle at each end and then try to 'turn' it. Even an Mtb wheel is only 2-4kgs complete with tyre, but it really resists. Okay, you have assistance, but the feel will alter as a result of the combined 5kgs extra.
Digga said:
Depends on the centre of mass and how fast it is rotating, plus don;t forget that where steering feel is concerned, you are turning against the weight of the two front wheels.
As someone else said earlier, take a front wheel of a bicycle, bear in mind much of the mass in right in the hub itself, and give it a good spin while holding the axle at each end and then try to 'turn' it. Even an Mtb wheel is only 2-4kgs complete with tyre, but it really resists. Okay, you have assistance, but the feel will alter as a result of the combined 5kgs extra.
that's why I stayed on 26" MTB wheels 29" was a fad now they are all going back to 27.5 ""As someone else said earlier, take a front wheel of a bicycle, bear in mind much of the mass in right in the hub itself, and give it a good spin while holding the axle at each end and then try to 'turn' it. Even an Mtb wheel is only 2-4kgs complete with tyre, but it really resists. Okay, you have assistance, but the feel will alter as a result of the combined 5kgs extra.
26" just worked imo and the lightest.
Porsche911R said:
that's why I stayed on 26" MTB wheels 29" was a fad now they are all going back to 27.5 ""
26" just worked imo and the lightest.
Many of the World Cup downhillers have gone to 29. That - on big hits - is traditionaly where a big radius wheel is weakest.26" just worked imo and the lightest.
Some run a 'mullet' (29 front 27.5 rear) so they can get lower/further back on steep stuff and also to help turning.
Digga said:
Depends on the centre of mass and how fast it is rotating, plus don;t forget that where steering feel is concerned, you are turning against the weight of the two front wheels.
As someone else said earlier, take a front wheel of a bicycle, bear in mind much of the mass in right in the hub itself, and give it a good spin while holding the axle at each end and then try to 'turn' it. Even an Mtb wheel is only 2-4kgs complete with tyre, but it really resists. Okay, you have assistance, but the feel will alter as a result of the combined 5kgs extra.
To say nothing of a bit of countersteer to tip the Fireblade in, back in the day.As someone else said earlier, take a front wheel of a bicycle, bear in mind much of the mass in right in the hub itself, and give it a good spin while holding the axle at each end and then try to 'turn' it. Even an Mtb wheel is only 2-4kgs complete with tyre, but it really resists. Okay, you have assistance, but the feel will alter as a result of the combined 5kgs extra.
Porsche911R said:
that's why I stayed on 26" MTB wheels 29" was a fad now they are all going back to 27.5 ""
26" just worked imo and the lightest.
With you on that. I succumbed and went 27.5" but as I don't compete, and enjoy dicking around on bikes more than coughing a lung up, I much prefer the playfulness of 26" wheels.26" just worked imo and the lightest.
D.no said:
Porsche911R said:
that's why I stayed on 26" MTB wheels 29" was a fad now they are all going back to 27.5 ""
26" just worked imo and the lightest.
With you on that. I succumbed and went 27.5" but as I don't compete, and enjoy dicking around on bikes more than coughing a lung up, I much prefer the playfulness of 26" wheels.26" just worked imo and the lightest.
I guess they needed to sell more bikes so make new wheel sizes, 29" is dead imo too heavy massive stand over heights, just a crap size all round.
Downhilling who cares, the ave person pedals up hill and then reaps the rewards with fast steering on the mini hills we get in the UK.
My Turner 26 is fine at Whinlatter.
ChrisW. said:
The reduction in rotational mass also enables suspension to work better ... allowing tyres to breathe with the road. This combined with better steering feel makes a massive difference in the wet.
Lighter wheel/brake/tyre definitely enables you to run lower HSC (high speed compression) rate. There's less energy being absorbed in stopping the wheel taking off from every little bump and imperfection. I'm guess that the corresponding is true also of HSR if that is adjustable too.Digga said:
ell IME you definitely want to be going fast enough to get across the gaps. 
(26" wheels, Intense 951 downhill rig.)
I am too old for that sort of riding , but I do love going downhill fast :-) but no need for a downhill bike with modern trail bikes giving 160mm travel. I will be getting a emtb in 2021 to aid the uphill bits maybe then giving 2 down hill runs over one on a Sunday am ride. (26" wheels, Intense 951 downhill rig.)
Love how this has got the MTB guys all excited ! I don’t have the bottle for jumps like that any more Digga, fair play to you ! I do a bit at Aston Hill bike park near me in the Chilterns...good fun and a great workout if you ride back up and don’t use an e Bike ! Only found out recently that a Mr Martin used to race his cars up Aston Hill when it was used as a Hill Climb.....
Cheib said:
Love how this has got the MTB guys all excited ! I don’t have the bottle for jumps like that any more Digga, fair play to you ! I do a bit at Aston Hill bike park near me in the Chilterns...good fun and a great workout if you ride back up and don’t use an e Bike ! Only found out recently that a Mr Martin used to race his cars up Aston Hill when it was used as a Hill Climb.....
Ebikes get you just as fit, you just climb faster.I think a lot of non e bike people think it’s like a motorbike lol.
Cheib said:
Love how this has got the MTB guys all excited ! I don’t have the bottle for jumps like that any more Digga, fair play to you !.....
To be fair, that one was a lot bigger than it look sin the picture. I've spoken to a few riders who've had trips to A&E from it, and it is not something I've done in a good few years now! Not averse to smaller, less lethal gaps still.I think the interesting thing with playing about with Mtb suspension setup is how sensitive and immediate it is. It gives a good grounding in what the adjustments actually mean. I think it's because the bikes are light, but also the trail surfaces vary a lot, so you just get a very quick induction into how the high and low speed compression and rebound settings affect dynamics.
Obviously it's much more complex with a car. For a kick off, there's much more squat under acceleration, but the real difference of course is that being a 4-wheeled platform, not only are you controlling longitudinal loads, but also lateral.
That said, because road and trackday cars never hit anything like the variety of surfaces and features - gravel, grass, roots, rocks, big jump compressions, berms etc. - that an Mtb or offroad motorbike does, settings up is simpler but also more subtle.
Digga said:
ChrisW. said:
The reduction in rotational mass also enables suspension to work better ... allowing tyres to breathe with the road. This combined with better steering feel makes a massive difference in the wet.
Lighter wheel/brake/tyre definitely enables you to run lower HSC (high speed compression) rate. There's less energy being absorbed in stopping the wheel taking off from every little bump and imperfection. I'm guess that the corresponding is true also of HSR if that is adjustable too.av185 said:
Porsche911R said:
back to the subject matter
More Tourings for sale than Manual Gt3's at OPC's now.
3 v 2 .
and a growing glut of PDK's (14) so a sure fine way the 992 is close, but the manual winged owners are staying put.
What are you hearing about when the 992 GT3 is announced?More Tourings for sale than Manual Gt3's at OPC's now.
3 v 2 .
and a growing glut of PDK's (14) so a sure fine way the 992 is close, but the manual winged owners are staying put.
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