questa è la mia domanda : è possibile convertire una lenticolare da strada a 10 rapporti in una da pista con un unico rapporto ? presumo che si dovrebbe cambiare il corpetto chiedo lumi agli esperti
lenticolare da pista
- Creatore Discussione tomaz
- Data di inizio
Ho proprio paura di no, a meno che non sia per esempio una Corima strada/pista che hai comprato solo con l'opzione strada.
Cioè..... Si estrae completamente la cassetta, perchè predisposta, per mettere al suo posto il corpetto "fisso".
Per le altre non c'è possibilità.
Andy
Cioè..... Si estrae completamente la cassetta, perchè predisposta, per mettere al suo posto il corpetto "fisso".
Per le altre non c'è possibilità.
Andy
grazie mille e le lenticolari da pista hanno gli stessi prezzi di quelle da strada e quali sono le migliori
renatiello
Velocista
Sikhandar
Scalatore
Sikhandar
Scalatore
Si cmq c'è la PRO-LITE PADOVA che si può fare, te la vendono a 930 euro circa (see chainreactioncycles) con il kit di conversione monta smonta gira flip flop etc.
Sikhandar
Scalatore
Ciao ti riporto una simpatica review di alcune lenticolari; è tratta da un sito americano pertanto non c'è il pool-market tipico italiano (quindi no campagnolo, no gipiemme...). Però è vero che Miche = Zipp 900; e che la Falcon Accel 2 costa 899$ =)
Mi pare scritto molto bene e pieno di senso.
Mi sono imbattuto in questo post perchè guardavo un po' le lenticolari leggere, e "si narra" che la Falcon Accel 2 ha un peso "stupidly lower than the others" attestandosi a 700 grammi (!!!)
"I've had Arayas, Accel's, Zipp's, Corimas, and Cometes. Of them all, the Comete is by far the stablest -- I can horse it through raunchy transitions or hard drops down to the pole and never feel it's giving way. Yes it is heavier, but it also has the best hubs of any of them, easy and complete parts availability, etc. Tire bed is aluminum so you don't have any gluing problems, and it's wide enough that you can mount a tire like a 22 mm Dugast without worrying about whether it's adequately supported. It's a disc that completely rewards the rider who works it harder and is stronger. There's a reason it's the ubiquitous disc at World Cup and higher events. FYI, there's a 5-spoke rear Mavic coming out (looks just like an Io front but for the rear); I got a chance to ride one and it's not as stiff, doesn't steer as well (see below), but if your track is outdoors and gusty, a nice alternative. It's also about $4K.
Arayas are very nice, not as stiff, but also lighter. For a light rider, you might prefer them. Very costly. A lot of the cost of these discs ends up in the hubs (witness the problems Zipp has had getting a reliable hub for their track wheels). Narrower tire bed, so you probably don't want to use wider than a 21 mm Tufo on them. They have a very supple feel, which rewards a nice tire (like a Dugast silk latex) on a nice wooden track. Beautifully finished.
The Accel's are lower quality construction (all comments about Accel's basically apply to Corimas as well), have mediocre axles, rough spots that whistle at speed, and tend not to be as precisely round and true as the Comete or the Araya.
Zipps are Zipps. Good deals for the money, relatively stiff at a lower weight, and you don't cry too hard if you crash one (not like when you crash an Io). They don't take the abuse a Mavic does -- they pick up dings, dents, etc. faster. Buy last year's model and get a big savings because they're always changing the wheels slightly but not enough to affect your time -- just get an '04 or later so you get the better hubs.
As for which is faster, it all depends on how fast you're going and where any wind is coming from. Dead on at 30+ mph, a flat disc will have a slight but meaningful advantage. For a pursuit rider, it's likely the better choice. But if you're riding up and down the bankings, riding an outdoor track with wind, etc., the lenticular will probably give you an equal or slightly better ride (again depending on speed and wind angle).
Perhaps the most important thing to consider for certain track events are the absolute strength of the wheel and its steerability. Lenticular discs use basic centrifugal equilibrium to make the wheel steer much more easily and naturally; in comparison, a flat disc tries to take a straight line and is resistant to changes of direction (think about spinning a top and then trying to tilt it -- it resists the action; so does a disc, but a flat disc does it to a significantly greater extent). So if you want to maneuver a lot, especially at speed (read madison, sprint and keirin) a flat disc destabilizes your ride as you change direction. Aero effects become secondary to your feeling of instability -- you'll slow down or not be comfortable pushing in squirrelly situations. Throw in any decrease in disc strength, and you can't use the strength you've trained to develop. You never win that way. This isn't a problem again, for pursuit, for a lot of omnium racing, and for most kilo or 500m riders, but it's a very big issue if you're twisting and turning all over in the middle of a madison. Sprints and keirin are similarly an issue."
Mi pare scritto molto bene e pieno di senso.
Mi sono imbattuto in questo post perchè guardavo un po' le lenticolari leggere, e "si narra" che la Falcon Accel 2 ha un peso "stupidly lower than the others" attestandosi a 700 grammi (!!!)
"I've had Arayas, Accel's, Zipp's, Corimas, and Cometes. Of them all, the Comete is by far the stablest -- I can horse it through raunchy transitions or hard drops down to the pole and never feel it's giving way. Yes it is heavier, but it also has the best hubs of any of them, easy and complete parts availability, etc. Tire bed is aluminum so you don't have any gluing problems, and it's wide enough that you can mount a tire like a 22 mm Dugast without worrying about whether it's adequately supported. It's a disc that completely rewards the rider who works it harder and is stronger. There's a reason it's the ubiquitous disc at World Cup and higher events. FYI, there's a 5-spoke rear Mavic coming out (looks just like an Io front but for the rear); I got a chance to ride one and it's not as stiff, doesn't steer as well (see below), but if your track is outdoors and gusty, a nice alternative. It's also about $4K.
Arayas are very nice, not as stiff, but also lighter. For a light rider, you might prefer them. Very costly. A lot of the cost of these discs ends up in the hubs (witness the problems Zipp has had getting a reliable hub for their track wheels). Narrower tire bed, so you probably don't want to use wider than a 21 mm Tufo on them. They have a very supple feel, which rewards a nice tire (like a Dugast silk latex) on a nice wooden track. Beautifully finished.
The Accel's are lower quality construction (all comments about Accel's basically apply to Corimas as well), have mediocre axles, rough spots that whistle at speed, and tend not to be as precisely round and true as the Comete or the Araya.
Zipps are Zipps. Good deals for the money, relatively stiff at a lower weight, and you don't cry too hard if you crash one (not like when you crash an Io). They don't take the abuse a Mavic does -- they pick up dings, dents, etc. faster. Buy last year's model and get a big savings because they're always changing the wheels slightly but not enough to affect your time -- just get an '04 or later so you get the better hubs.
As for which is faster, it all depends on how fast you're going and where any wind is coming from. Dead on at 30+ mph, a flat disc will have a slight but meaningful advantage. For a pursuit rider, it's likely the better choice. But if you're riding up and down the bankings, riding an outdoor track with wind, etc., the lenticular will probably give you an equal or slightly better ride (again depending on speed and wind angle).
Perhaps the most important thing to consider for certain track events are the absolute strength of the wheel and its steerability. Lenticular discs use basic centrifugal equilibrium to make the wheel steer much more easily and naturally; in comparison, a flat disc tries to take a straight line and is resistant to changes of direction (think about spinning a top and then trying to tilt it -- it resists the action; so does a disc, but a flat disc does it to a significantly greater extent). So if you want to maneuver a lot, especially at speed (read madison, sprint and keirin) a flat disc destabilizes your ride as you change direction. Aero effects become secondary to your feeling of instability -- you'll slow down or not be comfortable pushing in squirrelly situations. Throw in any decrease in disc strength, and you can't use the strength you've trained to develop. You never win that way. This isn't a problem again, for pursuit, for a lot of omnium racing, and for most kilo or 500m riders, but it's a very big issue if you're twisting and turning all over in the middle of a madison. Sprints and keirin are similarly an issue."