OP
OP
TAV
Guru
- Location
- mountainash
When I build the bike back I'm thinking of going for a triple or maybe a 42 32 chainset any suggestions?
Gravel bikes
- Thread starter TAV
- Start date
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Ajax Bay
Guru
- Location
- East Devon
Large ring of 42t means you'd spin out at relatively low downhill speeds, even with a 11-32 cassette.
https://www.gear-calculator.com/?GR...25,28,32&UF=2215&TF=90&SL=2.6&UN=KMH&DV=teeth
Suggests spin out at about 30mph (assumes max cadence is 100rpm - your souplesse may vary).
Have a play with the calculator (eg to look at a triple, but NB rear derailleur capacity will mean (arguably) a 28t max sprocket).
https://www.gear-calculator.com/?GR...25,28,32&UF=2215&TF=90&SL=2.6&UN=KMH&DV=teeth
Suggests spin out at about 30mph (assumes max cadence is 100rpm - your souplesse may vary).
Have a play with the calculator (eg to look at a triple, but NB rear derailleur capacity will mean (arguably) a 28t max sprocket).
OP
OP
TAV
Guru
- Location
- mountainash
OK cheers for the advice 👍
Ajax Bay
Guru
- Location
- East Devon
Linky?
Ajax Bay
Guru
- Location
- East Devon
So @Sallar55 you are floating the idea of the OP fitting a 13-speed Campagnolo Ekar drivechain (to get the 9sp sprocket).
Bike is a Genesis-equilibrium
Apart from cost (cassette alone is £200), the OLD of the drop outs needed is 142.5mm (the OP's bike has 130mm).
Triples with close ratio cassettes either can't give a short enough low gear, or can't offer a long enough high gear (or both) so I very much doubt it will be the "next must have".
Bike is a Genesis-equilibrium
Apart from cost (cassette alone is £200), the OLD of the drop outs needed is 142.5mm (the OP's bike has 130mm).
Triples with close ratio cassettes either can't give a short enough low gear, or can't offer a long enough high gear (or both) so I very much doubt it will be the "next must have".
All depends upon your riding style. Do you struggle up the hills and try to make time back on the descents, that way you are always working. The other strategy is to attack the hill and drink,eat ,recover while conserving energy on the descent. You pick the gearing for what suits you. I like triples as it's easy to set the gearing you like. Single chainring with 13 is nice as well, will Shimano go better next.
Scottish Scrutineer
Über Member
- Location
- Fife, Scotland
I run sub-compact chainrings (48/32) on two of my road bikes with 11-32 or 11-34 cassettes. Occasionally run out out leg speed when in 48:11, but by then I'm usually considering freewheeling.
My other bike is a Kinesis At, which has 1x gearing 40T chainring and 11-42 cassette. I'd be happy to use it on a century ride, but might consider fitting the 35mm Voyager Hypers rather then the 38mm GavelKing SK tyres.
OP
OP
TAV
Guru
- Location
- mountainash
I've got a gravel bike/ touring bike but I fancy going back to audaxs but I think it wouldn't be rite with the large 47mm tyres and if I put say 32mm on there I think it would look odd with a massive gaping the folks.
Attachments
matticus
Guru
ColinJ
Puzzle game procrastinator!
- Location
- Todmorden - Yorks/Lancs border
Like this, you mean?
I suppose I would lose even more style points for walking my bike up that steep hill!
Ming the Merciless
There is no mercy
- Location
- Inside my skull
Ming the Merciless
There is no mercy
- Location
- Inside my skull
Like this, you mean?
View attachment 666812
I suppose I would lose even more style points for walking my bike up that steep hill!
I see you are trying to balance on one leg whilst wearing XXXXL shorts..
