Gears

ol9

Folks,

I'm riding a 10 Speed 34/50 - 12/25 and can only just get up the steep hill at the end of my 18 mile commute.

I recently bought a 2nd hand Ribble Winter Bike thats got 9 Speed 39/52 - 12/23 so I'm going to struggle on 'The Hill' and end up getting off the bike which I really don't want to do.

What's the cheapest way of changing the gearing on the 9 Spead to give me the equiavalent of the 34 Front - 25 Rear I've got on the 10 Speed?

Thanks in advance

Stuart

diamonddog

Change both cassettes to 12/28 or 12/27 problem solved.

ol9

diamonddog wrote:

Change both cassettes to 12/28 or 12/27 problem solved.

I can (just) get up the hill on my 10 speed and as I'm relatively new I should improve.

As it stands i wont be able to get up on my 9 Speed Ribble so it's lowest gear has to be similar as that on my 10 speed.

diamonddog

12/28 or 12/30 the latter would be a bit easier IMO.

diamonddog

Just to add there are no medals for making it harder than it needs to be on hills.
You need to check that the winter bike derailleur is up to the job for the 12/30 if you go that route, I have noticed some people swap cassettes with no problems and some others have problems.

tomisitt

Changing the 9-speed's cassette to a 12-29 will give you pretty much the same lowest gear as on the 10-speed.

34 x 25 = 36.7 gear-inches

39 x 23 = 45.8 gear-inches

39 x 29 = 36.3 gear-inches

But you'll need to find out if the derailleur cage will be OK for a 29, as mentioned above.

diamonddog

Think only campy do 12/29 or maybe a mountain bike cassette but I could be wrong.

ol9

Thanks for taking the time guys, I've got a 12/28 and new chain on its way.

Now for the new lights...... :?

diamonddog

Good luck with it.