wickerboi87
New Member
i ride a cinelli with a 50(200mm) tooth crank i often find i run out of gears on fast sections is there i higher crank and is it easy to change only really got into bike this summer any help much appreciated
cranks
- Thread starter wickerboi87
- Start date
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OP
OP
wickerboi87
New Member
enchanting? cranks are arms i was meaning front gear set lol i check now
Oldfentiger
Veteran
- Location
- Pendle, Lancs
Chainring.
Looks like the predictive text had it's way.
Looks like the predictive text had it's way.
OP
OP
wickerboi87
New Member
smallest gear on back is about 45mm 9 tooth
OP
OP
wickerboi87
New Member
Fixed, thanks.
OP
OP
wickerboi87
New Member
sorry
Ajax Bay
Guru
- Location
- East Devon
@wickerboi87 
To help us give you a decent answer to this question, please say how many teeth your (assumed) two chainrings have AND how many teeth on the largest and the smallest sprocket (them's the 'cogs' on the back). The latter will not be 9 teeth - to count them you'll need to use at least one toe (as well as your hand digits). Bonus mark: look to see how long your cranks are (there'll be a number on the back like 172.5 (which is their length in mm)).
Play with this Gear Calculator.
To help us give you a decent answer to this question, please say how many teeth your (assumed) two chainrings have AND how many teeth on the largest and the smallest sprocket (them's the 'cogs' on the back). The latter will not be 9 teeth - to count them you'll need to use at least one toe (as well as your hand digits). Bonus mark: look to see how long your cranks are (there'll be a number on the back like 172.5 (which is their length in mm)).Play with this Gear Calculator.
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Smokin Joe
Squire
- Location
- Bare headed cyclist, Smoker
50t chainring and 9t sprocket give you a gear ratio of 150 inches, which means one of the following three options -
1/ You've miscounted the number of teeth
2/ You're cadence (RPM) is far too low
3/ You should enter the Tour de France because on one would live with you
OP
OP
wickerboi87
New Member
25 top and 11 smallest proper count this time sorry lol back gears lol
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OP
OP
wickerboi87
New Member
miscount lol
OP
OP
wickerboi87
New Member
miscount on tooth my bad9T sprocket does not exist in this dimension.
Ajax Bay
Guru
- Location
- East Devon
Pending the OP's answer . . . (he goes away to count carefully)
You can put a 52 on instead but then you'll need to change to a 36 for your smaller ring. A 16-tooth jump is the most a front derailleur can handle.
You could also swap out your cassette for one with an 11-tooth sprocket, if you currently you have a 12-tooth sprocket. Note that a 50-11 will give you a bigger gear than 52-12. A 50-11 would give you 43mph at a cadence of 120 (spinning out time).
You can put a 52 on instead but then you'll need to change to a 36 for your smaller ring. A 16-tooth jump is the most a front derailleur can handle.
You could also swap out your cassette for one with an 11-tooth sprocket, if you currently you have a 12-tooth sprocket. Note that a 50-11 will give you a bigger gear than 52-12. A 50-11 would give you 43mph at a cadence of 120 (spinning out time).
