9 speed upgrade - road bike

[buckstopper]

On 2/15/2023 at 1:12 PM, Alantravis52 said:

Hi 

Is it possible to upgrade my old 9spd shimano 105 group set, but still use the same hub, I know the shifters will have to be replaced as well 

Group set is the original 105 9spd fitted to my Giant bought in 1996

Ratio is 50/34 front and 28/11 rear

I'm looking to get a more suitable gear ratio 

My read on OPs post is that he's looking to get to 50/34 and 11/28. OP didn't say 10 /11/12/13 speed. Assuming cost is an issue and he wants to stay with 9 spd I reckon he should look for a suitable Sora 50-34 or the Shimano RS510 as fitted OE on some 7000 groups on bikes like the Bianchi Sprint. Maybe a longer rear derailleur if necessary but first see what the old one can do if it's still OK. What I mean is by adjusting the derailleur b stop inwards it does effectively lengthen it. 28 shouldn't be an issue. Maybe the jockey wheels could be upgraded. If the shifters are an issue he could go to newer used 9 sp or 10. I fitted Sora 3000 shifters to replace old 105 9sp and they worked a treat. Don't regard what Shimano say as gospel. I have also fitted and used a 42 cassette on my 7020 gs using the 7000 rd for Swartberg. it worked, not super well though. I have subsequently bought a Wolf derailleur extender and will try it out when I set up for this year's race. 

With more cost he could of course go Tiagra 10 shifters and replace other shifting components as necessary. He doesn't say how worn his original gs is

 

[The Ouzo]

Since the OP has disappeared we can only guess what he want to "upgrade"

 

I ran 9 speed for many many years. For some different gearing I changed a few of the the individual sprockets on the cassette and also changed the chainring size upfront, depending on the terrain I was going to race on. 

[Headshot]

4 hours ago, The Ouzo said:

Since the OP has disappeared we can only guess what he want to "upgrade"

 

I ran 9 speed for many many years. For some different gearing I changed a few of the the individual sprockets on the cassette and also changed the chainring size upfront, depending on the terrain I was going to race on. 

You've given me some ideas about messing around with the cassettes. I have a few slightly worn cogs off old MTB groupsets that might help improve the low end gearing...

[The Ouzo]

6 minutes ago, Headshot said:

You've given me some ideas about messing around with the cassettes. I have a few slightly worn cogs off old MTB groupsets that might help improve the low end gearing...

If I recall correctly all the cogs were individual on teh cassette, so it was easy enough to swap out the big cogs for bigger ones.

[Alantravis52]

On 2/16/2023 at 9:32 PM, RossTopher said:

I have a 9 speed 11-34 cassette gathering dust. It's probably done 200km max. Let me know if you're interested, no charge. 

As mentioned by others, it's not worth the hassle to change to 10 speed for 1 additional ratio, just a wider range is needed. Ride it until the day comes for a new bike. 

Ive got bikes ranging from 8-11 speed and the number of clicks has never been a factor, just whether I can get up the hill. 

Hi Ross

 

if you're willing to part with the cassette I would love to try that ratio

Where do you stay, I'm in Cape town

[RossTopher]

54 minutes ago, Alantravis52 said:

Hi Ross

 

if you're willing to part with the cassette I would love to try that ratio

Where do you stay, I'm in Cape town

Sent you a message with my details