Can I change a 6 speed freewheel with 7 speed?
Can I change a 6 speed freewheel with 7 speed?
6 Speed to 7 Speed If your bike currently has a regular-spaced 6-speed freewheel, you can generally upgrade to 7-speed with little trouble. Since the sprockets are closer together on a 7-speed freewheel, the overall width is only very slightly wider than a regular-spaced 6-speed.
Can I change from 6 speed to 7 speed cassette?
You will very likely need a new right-hand shifter too. Your six-speed unit will have 6 indents/positions, and it won’t handle the extra gears. If you have a friction shifter it might work, or it might not. While changing all this stuff you may as well install new cable inner wires and outer tubes too.
Can you put a 7 speed cassette on a 6 speed bike?
Shimano derailleurs marketed as 7, 8, 9 speed (and in addition, 10 speed road), can be interchanged in any of those speed drivetrains. Six speed is included in there as well, it’s just not common to see. So yes, a six speed rear derailleur will work correctly with 7, 8 or 9 rear speed systems.
Are freewheels interchangeable?
No, freewheels are completely different from the cassette / free hub system and are not interchangeable. A freewheel includes the ratchet mechanism that allows the sprockets to rotate backwards as well as the sprockets themselves, and threads into the hub.
Are 6 and 7 speed chains the same?
Shimano, SRAM and Campagnolo all use the same chain with 8 speeds. Chain for 7 speeds is a bit wider – 7.3 mm, while a 6 speed one is substantially wider – 7.8 mm. That is why the reverse is not the case and a 7 speed chain and especially a 6 speed one will not work as well on an 8 speed system.
How many speeds can you get with a freewheel?
8-speeds were available in both freewheel and cassette hubs. As with the move from 4- to 5-speed, and from 5-speed to 6-speed, this required adding spacers to the right-hand end of the axle to keep the chain from rubbing on the frame.
Can I replace a 6 speed cassette with an 8-speed cassette?
You would need to verify frame dropout spacing, add axle spacer to the drive side and re-dish the wheel to re-center. Alternative is to build a new wheel with a cassette hub (possibly re-use the rim and spokes). You probably do not need a new derailleur for 8-speed conversion but a narrower chain would be advisable.
Can I replace a freewheel with a cassette?
You cannot convert a freewheel hub to cassette. You need a new rear hub. What he said. You’ll have to either get a whole new rear wheel or buy a rear hub and spokes and have them re-laced to your current rim.