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Post by erictherat on May 16, 2016 19:02:15 GMT
I have tiagra on my bike, and love it. I chose it over 105 because of the easy access Gear cables. Fitting yourself is pretty easy and the tools you need can be bought from eBay for a few pounds.
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Post by joby on May 16, 2016 19:27:59 GMT
I'm running 10sp Tiagra on my T3A. Brakes and front shifting are fine, but I've always found the rear shifting a little sloppy. It's difficult to describe...changing down the cassette (to smaller sprockets) is fine, but changing up you always have to push a little past the click to get it to shift (which often results in an annoying extra click which you then have to undo). If you tweak the adjuster to eradicate this, the shift in the other direction is affected. I've never got to the bottom of whether this is just normal with this groupset, or whether there's something slightly wrong with my setup. I've changed everything bar the rear shifter and the rear mech to address this (including the mech hanger) but with no joy. Like r0b1et says, maybe it's just not as refined as 105 etc. It may be that there's some genuine issue with my setup, or maybe that's just how Tiagra is. But hearing people speak of crisp, precise shifting with 105 and Ultegra makes me wish sometimes I'd spent the extra. (As an aside, fitting a new groupset is not especially difficult - in fact I found the fiddliest thing was wrapping the new bar tape once I'd done. I'd definitely recommend giving it a go.) is your cable to the rear mech guided and attached properly (on the correct side of the screw that tightens it to the mech)? Yes, all routed correctly
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Post by chas on May 16, 2016 19:59:42 GMT
I'm running 10sp Tiagra on my T3A. Brakes and front shifting are fine, but I've always found the rear shifting a little sloppy. It's difficult to describe...changing down the cassette (to smaller sprockets) is fine, but changing up you always have to push a little past the click to get it to shift (which often results in an annoying extra click which you then have to undo). If you tweak the adjuster to eradicate this, the shift in the other direction is affected. I've never got to the bottom of whether this is just normal with this groupset, or whether there's something slightly wrong with my setup. I've changed everything bar the rear shifter and the rear mech to address this (including the mech hanger) but with no joy. Like r0b1et says, maybe it's just not as refined as 105 etc. It may be that there's some genuine issue with my setup, or maybe that's just how Tiagra is. But hearing people speak of crisp, precise shifting with 105 and Ultegra makes me wish sometimes I'd spent the extra. (As an aside, fitting a new groupset is not especially difficult - in fact I found the fiddliest thing was wrapping the new bar tape once I'd done. I'd definitely recommend giving it a go.) My brother bought a Ribble 365 sportive a couple of years ago with Tiagra 10s and from new the best I could get the shifting was as you describe. This year even with new cables chain and cassette it was even worse until I fitted a 105 rear mech - huge improvement. The old 10s ones aren't expensive now I'd suggest giving one a try.
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Post by joby on May 16, 2016 20:03:23 GMT
Funny you should say that, chas - was just checking and it turns out I can pick up a 10sp 105 mech cheaper than a 10sp Tiagra these days...
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Post by Radchenister on May 16, 2016 22:20:29 GMT
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Post by joby on May 17, 2016 8:20:25 GMT
Ah, didn't spot that one. Price for both the Tiagra and 105 is high twenties everywhere else. Interesting that Ribble didn't even crop up on my google search. I had a quick look and they look pretty cheap (even the 105 is cheaper there).
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Post by Radchenister on May 17, 2016 9:02:09 GMT
Yep, did research and purchased last week ! Thought the 105 was worth it at the time but not sure it's so much better than that cut-price Tiagra, just thought I'd give the 105 a go ... but sticking that Tiagra on a mileage munching bike or through winter would make perfect sense, as does the slightly more refined 105 in summer / sportive season on my carbon - horses for courses as ever !
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Post by plasticniki on May 17, 2016 10:44:49 GMT
So basically, the general conclusion I can draw is that it IS probably worth it if I want to keep my frame, and I probably could do it myself. I've had a quote from my LBS and they will charge Β£340 to source and fit the Tiagra (vs Β£230 from Wiggle to fit myself).
Can my current, stock 650c wheels take the 10 speed Tiagra cassette, or is it worth upgrading them too?
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Post by Radchenister on May 17, 2016 10:54:40 GMT
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Post by plasticniki on May 17, 2016 10:59:20 GMT
Those are the *exact* wheels I'm looking at Sorry for the stupid question, but if I buy these wheels, will the current 8 speed cassette currently on my rear wheel fit onto them? I'm thinking I buy the wheels now, then the Tiagra upgrade in a couple of months or so, just to spread the cost.
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Post by Radchenister on May 17, 2016 11:09:37 GMT
The 8 speed cassette is fitted to my lad's - I can't remember if it comes with a spacer or not but will fit and it's easy to source for a couple of quid if you need one. Shop around and get some decent 650c tyres also, as they'll compliment the quality of wheels. The Tiagra is also a good VFM and worthwhile upgrade IMO, although my own T3 is now back on its original groupset but with 105 brakes and Aksiums, operating as a winter trainer (mainly used on turbo this last few months, it did have a while with a 10 speed Tiagra groupset on it) - it's still functional enough to ride about training with no real hassles, it's not as refined as my other bike but it doesn't hold me back to an extent that I am bothered about changing it until absolutely necessary. If it was my only bike then I would do it as a priority. The T3 frame is rock solid functional bit of kit.
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Post by chas on May 17, 2016 16:20:42 GMT
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Post by Radchenister on May 17, 2016 16:33:06 GMT
That's a lot of bike for 500!
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Post by Scott M on May 18, 2016 9:23:04 GMT
Why would anyone buy the 520 now, with only Β£50 difference to the next bike up? ~ annoyed I bought the 520 only a few months ago
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Post by utriban on May 18, 2016 9:35:25 GMT
It's an amazing price for that bike configuration - even though it is 10 speed 105, just wheels and groupset cost almost that much. Add a nice light frame with facilities to attach fenders and racks and bigger tires - there's nothing not to like.
Thing that the original poster might want to keep in mind is that 540 frame geometry is more relaxed that the T3. So if you like you current bike size and if it feels just right racy on the road, chances are, you'd be more upright on 540.
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