Road tripple options..?
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Road tripple options..?
Postby thecaptn » Mon Aug 24, 2015 5:08 pm
I'm currently running SLX tripple on my road tourer, this allows me a climbing gear combo of 22t ring to 36t cassette. Id like to change to drop bars, can anyone recomend a tripple road set which could give me the same ratios?
Pete
- singlespeedscott
- Posts: 5510
- Joined: Sun Jan 20, 2008 4:35 pm
- Location: Elimbah, Queensland
Re: Road tripple options..?
Postby singlespeedscott » Mon Aug 24, 2015 5:33 pm
- cameronp
- Posts: 114
- Joined: Tue Jul 21, 2015 1:12 pm
- Location: Melbourne
Re: Road tripple options..?
Postby cameronp » Mon Aug 24, 2015 5:38 pm
The cheapest, and guaranteed-to-work, option is what singlespeedscott suggested: bar end shifters and separate brake levers. You can get drop bar brake levers that work with either MTB or road brakes. Make sure you get the right kind!
-
- Posts: 509
- Joined: Sat Mar 06, 2010 12:19 pm
Re: Road tripple options..?
Postby Top_Bhoy » Mon Aug 24, 2015 6:01 pm
You could do worse than trying to email or phone these guys in the UK for help on what combos work and what doesn't for your touring needs.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Mon Aug 24, 2015 7:53 pm
I've never played with them before, this will be a new experience.
cheers,
Pete
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Mon Aug 24, 2015 7:59 pm
As far as brakes, mini-V, cantliever and road disc (and of course normal calipers) are all OK with brifters, but regular long-arm V brakes & MTB cable discs won't work.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Mon Aug 24, 2015 9:13 pm
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Mon Aug 24, 2015 9:39 pm
Either way you need to do both shifter & derailleur, because the Shimano 10-sp. MTB RD won't talk to anything else, but a 9-sp. is fine with the 10-sp. road shifter.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Tue Aug 25, 2015 3:12 am
And this will still give you 10 speeds?Duck! wrote: 9-sp. is fine with the 10-sp. road shifter.
-
- Posts: 745
- Joined: Tue May 25, 2010 3:22 pm
Re: Road tripple options..?
Postby Espresso_ » Tue Aug 25, 2015 9:01 am
I would support this.singlespeedscott wrote:I would suggest if you want to keep the range I would fit some barend shifters to the drop bars. For touring they are perfect.
If you don't want/like bar ends, other options include:
- Other kinds of shifters, such as Gevenalle "integrated" shifters or Paul Thumbies
- Drop bars that take MTB shifters such as the Soma Gator
E
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Tue Aug 25, 2015 9:13 am
Yes, the gear count is in the shifter. MTB 7/8/9-sp derailleurs & road 7/8/9/10-sp. derailleurs all work on a leverage ratio of 1.7 - the derailleur moves 1.7 times the length of the cable pulled by the shifter, regardless of the number of gears. The indexing just breaks the cable pull into smaller bites to suit the closer sprocket spacing. Shimano MTB 10-sp derailleurs work on a ratio of 1.2, so paired to a road shifter won't swing far enough. Or to put it the other way, to cover the same sprocket space, it needs a shifter that pulls more cable.thecaptn wrote:And this will still give you 10 speeds?Duck! wrote: 9-sp. is fine with the 10-sp. road shifter.
- singlespeedscott
- Posts: 5510
- Joined: Sun Jan 20, 2008 4:35 pm
- Location: Elimbah, Queensland
Re: Road tripple options..?
Postby singlespeedscott » Tue Aug 25, 2015 12:59 pm
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Tue Aug 25, 2015 1:04 pm
Yes you do. It'll run out of travel before the derailleur has gone across the cassette.singlespeedscott wrote:Nothing stopping the use of a straight friction shifting barend. This way you have no need to worry about cable pull.
A 10-sp. cassette is 35mm wide between 1st & 10th sprocket centres. A derailleur with leverage of 1.7 needs 20.6mm of cable pull to cover the distance. A MTB 10-sp derailleur with leverage of 1.2 needs 29.2mm of cable to cover the same distance. A bar-end shifter, which pulls just a whisker over 20mm (to allow some tolerance) will run out of travel by about the 7th gear if coupled to the MTB derailleur.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Tue Aug 25, 2015 2:49 pm
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Tue Aug 25, 2015 3:27 pm
- cameronp
- Posts: 114
- Joined: Tue Jul 21, 2015 1:12 pm
- Location: Melbourne
Re: Road tripple options..?
Postby cameronp » Tue Aug 25, 2015 4:22 pm
Great explanation, cheers! My thinking had been along the same lines as singlespeedscott's.Duck! wrote:A 10-sp. cassette is 35mm wide between 1st & 10th sprocket centres. A derailleur with leverage of 1.7 needs 20.6mm of cable pull to cover the distance. A MTB 10-sp derailleur with leverage of 1.2 needs 29.2mm of cable to cover the same distance. A bar-end shifter, which pulls just a whisker over 20mm (to allow some tolerance) will run out of travel by about the 7th gear if coupled to the MTB derailleur.
-
- Posts: 2842
- Joined: Fri Apr 17, 2009 9:44 pm
- Location: Middle East, Melbourne
Re: Road tripple options..?
Postby ironhanglider » Tue Aug 25, 2015 4:36 pm
Cheers,
Cameron
-
- Posts: 540
- Joined: Wed Jun 05, 2013 11:17 am
Re: Road tripple options..?
Postby Blakeylonger » Tue Aug 25, 2015 5:25 pm
a question for another place. Varies over the models.ironhanglider wrote:How much cable do Campag brifters pull?
http://blog.artscyclery.com/science-beh ... atibility/" onclick="window.open(this.href);return false;
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Tue Aug 25, 2015 6:43 pm
Thanks for posting the link, saves me digging around for it again.Blakeylonger wrote:a question for another place. Varies over the models.ironhanglider wrote:How much cable do Campag brifters pull?
http://blog.artscyclery.com/science-beh ... atibility/" onclick="window.open(this.href);return false;
For the sake of sanity, leave Campag out of it!
Here goes anyway.... Campag brifters pull a total of 25.5mm, with a derailleur ratio of 1.5, on a cassette width of 38.25mm. Aside from the fact that none of those figures align with any Shimano stuff, the sprocket spacing, and resultant indexing is actually different at various points through the cassette!
So let's keep it within the Shimano family....
All road rear derailleurs for 10-sp and less - with the notable exception of new 4700 Tiagra - and all MTB rear derailleurs for 9-sp. and less use the 1.7 leverage ratio. Therefore any shifter and any derailleur from this lot will work together; only the shifter and the cassette need to match the number of gears. Although there are slight differences in overall width between 8, 9 & 10-sp. cassettes, derailleurs have considerably more range of travel than is needed, to allow for different hubs having different lateral offsets.
Road 11-sp (+ probably [still 10-sp] 4700 Tiagra, but TBC) with leverage ratio of 1.4, MTB 10-sp. at 1.2 & MTB 11-sp. at 1.1 are all their own little families that don't talk nicely to anything else.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Tue Aug 25, 2015 7:31 pm
Thanks for the advice everyone,
Pete
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Tue Aug 25, 2015 8:01 pm
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Road tripple options..?
Postby Duck! » Tue Aug 25, 2015 8:54 pm
Or you could buy a set of 4600 Tiagra shifters, that Deore derailleur & use your existing 10-sp. chain & cassette..thecaptn wrote:Ok, I've found Some Sora 3x9 brifters, deore 9 speed shadow deralier and a Sram 9 speed chain on Wiggle which should do the job and the cassette I had is 11-34 which is close enough. Can do it for under $300 which seems pretty reasonable.
Thanks for the advice everyone,
Pete
- rangersac
- Posts: 1438
- Joined: Thu May 24, 2012 11:01 am
- Location: Southern Tasmania
Re: Road tripple options..?
Postby rangersac » Tue Aug 25, 2015 9:13 pm
Mini Vs work with brifters provided you have an arm length of 85mm or less. Swap out the crap stock pads for a set of Koolstops and these will work amazingly well for not much coin. Otherwise it's a fair step up to something like a TRP CX-9.thecaptn wrote:I just realised the brakes will be an issue, I've got xt V brakes. Can anyone recommend some decent calipers or cx brakes bearing in mind that I've 32 and 35mm tyres on 1" rims?
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Tue Aug 25, 2015 10:07 pm
These are in my price range, thanksrangersac wrote:
Mini Vs work with brifters provided you have an arm length of 85mm or less. Swap out the crap stock pads for a set of Koolstops and these will work amazingly well for not much coin. Otherwise it's a fair step up to something like a TRP CX-9.
-
- Posts: 1711
- Joined: Wed Mar 17, 2010 8:28 pm
Re: Road tripple options..?
Postby thecaptn » Wed Aug 26, 2015 7:46 am
This is a better idea and I think I can do it a smidge cheaper.Duck! wrote: Or you could buy a set of 4600 Tiagra shifters, that Deore derailleur & use your existing 10-sp. chain & cassette..
Return to “Buying a bike / parts”
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Commuting
- MTB
- Recumbents
- Fixed Gear/ Single Speed
- Track
- Electric Bicycles
- Cyclocross and Gravel Grinding
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Cargo Bikes and Utility Cycling
- Road Racing
- Road Biking
- Training
- Time Trial
- Triathlon
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Australia
- Western Australia
- New South Wales
- Queensland
- South Australia
- Victoria
- ACT
- Tasmania
- Northern Territory
- Country & Regional
Who is online
Users browsing this forum: No registered users
- All times are UTC+10:00
- Top
- Delete cookies
About the Australian Cycling Forums
The Australian Cycling Forums is a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.
Bicycles Network Australia
Forum Information
Connect with BNA
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.