My Mango came with 52 -39-30 rings and an 11 -28 cassette to a 26 tooth mid drive sprocket and standard 18 tooth final.
That gave a lowest gear of about 30.8 GI and a high of 136 GI assuming a tyre diameter of 19.92" for the Big Apple.
Speed range 11.8 kmh to 52.1 kmh at cadence of 80.
That was OK until I developed a bit of a heath problem and have, for the moment, to take the riding easy and has kept me from riding my Velo. Time to lower the gearing.
I finally received the new 22 tooth mid drive and swapped out the 26 tooth.
The new range is from 26.1 GI to115 GI. Speed range 10 kmh to 44.1 kmh at cadence of 80
Now I have replaced the 11 -28 with an 11 -32.
The range is now 22.8 GI to 115 GI. Speed range 8.7 to 44.1 kmh at cadence of 80
According to the spreadsheet anyway. The only time I might miss the higher gearing is to crank up the speed on a downhill.
It was a devil of a job to get the rear shifting to work. It kept derailing on the inside even though the limit screws were correct and also had trouble with interference between the 32 tooth sprocket and the deraileur cog.
Fortunately lots of ways to adjust because of the way it is all attached.
It's not yet quite right and there is a clunk noise on each change that echoes through the body and sounds worse than it is. You also feel it. A bit more fine tuning should see it right though. Wish I had some rollers instead of having to take it out and ride after each adjustment.
John
Mango Gearing changes.
-
- Posts: 1391
- Joined: Tue Oct 02, 2007 7:12 pm
- Location: Albany. 400km South of Perth
- bradwoodbr
- Posts: 414
- Joined: Mon Jun 16, 2008 1:12 pm
- Location: Perth Western Australia
- Contact:
Re: Mango Gearing changes.
Postby bradwoodbr » Mon Dec 03, 2012 4:19 pm
Build your own.
For example:
http://fleettrikes.com/tth.htm#triketrainer
Regarding gearing, I was wondering if a 26 on the front (52/30/26) would give the lower gearing you are searching for?
For example:
http://fleettrikes.com/tth.htm#triketrainer
Regarding gearing, I was wondering if a 26 on the front (52/30/26) would give the lower gearing you are searching for?
-
- Posts: 1391
- Joined: Tue Oct 02, 2007 7:12 pm
- Location: Albany. 400km South of Perth
Re: Mango Gearing changes.
Postby John Lewis » Tue Dec 04, 2012 12:02 am
Yes I've been contemplating building one. I though a couple of front hubs in a frame would be sufficient for what I want.bradwoodbr wrote:Build your own.
For example:
http://fleettrikes.com/tth.htm#triketrainer
Regarding gearing, I was wondering if a 26 on the front (52/30/26) would give the lower gearing you are searching for?
I Looked at getting a 44-33-22 ( think it was.) ring set. Unfortunately it wont fit. the way the deraileur post is made wont allow you to lower the deraileur. The frame would get in the way if you lowered it anyway. As the said 30 is the minimum ring size. I think I could get around that though.
I was going to put on that ring set and also a Sram DualDrive in the mid drive. That would have given me from about I think 15 GI to about 140. Something like that anyway.
John
-
- Posts: 964
- Joined: Sat Jan 16, 2010 9:42 pm
Re: Mango Gearing changes.
Postby Rhubarb » Wed Dec 05, 2012 10:38 pm
The Mango tour uses a 42/32/24 Shimano Deore XT Crankset. Ask Harry how they set up the FD.
http://www.sinnerbikes.com/wordpress/wp ... o-Tour.pdf" onclick="window.open(this.href);return false;
http://www.sinnerbikes.com/wordpress/wp ... o-Tour.pdf" onclick="window.open(this.href);return false;
-
- Posts: 1391
- Joined: Tue Oct 02, 2007 7:12 pm
- Location: Albany. 400km South of Perth
Re: Mango Gearing changes.
Postby John Lewis » Wed Dec 05, 2012 11:15 pm
Thanks Ben. I notice the deraileur post on the tour appears to be different to ours. It is a round ali rod and quite thin in the photos I've seen. Looks the same as the Quest.
I guess I could buy the whole assembly and just swap it over.
I did finally get the shifting sorted out and it seems fairly smooth now.
I have a new SRAM Dual Drive here. Pity its not a disk brake version or I could try it out.
John
I guess I could buy the whole assembly and just swap it over.
I did finally get the shifting sorted out and it seems fairly smooth now.
I have a new SRAM Dual Drive here. Pity its not a disk brake version or I could try it out.
John
- Aushiker
- Posts: 22398
- Joined: Tue Jun 05, 2007 1:55 pm
- Location: Walyalup land
- Contact:
Re: Mango Gearing changes.
Postby Aushiker » Fri Dec 07, 2012 10:54 pm
Or maybe a mountain drivebradwoodbr wrote:Regarding gearing, I was wondering if a 26 on the front (52/30/26) would give the lower gearing you are searching for?
Andrew
Andrew
Aushiker.com
Aushiker.com
- Aushiker
- Posts: 22398
- Joined: Tue Jun 05, 2007 1:55 pm
- Location: Walyalup land
- Contact:
Re: Mango Gearing changes.
Postby Aushiker » Sat Dec 08, 2012 7:49 pm
John
Hijacking your thread; hope you don't mind, but this may be of interest to you as well. Twilwel made a suggestion of a Alfine 11 hub at BROL as one option to get a better gearing range.
I have played with his suggestion in combination with a 34t Schlumpf High Speed Drive which on paper I think looks good but not sure if this will push the limits of the Alfine 11. Anyone have any thoughts on this?
Playing with HPV Drivetrain Analyzer I have come up with following tables which I think are pretty close based on my best estimates of wheel sizes.
Red Edition with Marathon Race 406-40:
Mango Tour with Schwalbe Big Apple 406-60:
Andrew
Hijacking your thread; hope you don't mind, but this may be of interest to you as well. Twilwel made a suggestion of a Alfine 11 hub at BROL as one option to get a better gearing range.
I have played with his suggestion in combination with a 34t Schlumpf High Speed Drive which on paper I think looks good but not sure if this will push the limits of the Alfine 11. Anyone have any thoughts on this?
Playing with HPV Drivetrain Analyzer I have come up with following tables which I think are pretty close based on my best estimates of wheel sizes.
Red Edition with Marathon Race 406-40:
Mango Tour with Schwalbe Big Apple 406-60:
Andrew
Andrew
Aushiker.com
Aushiker.com
-
- Posts: 1391
- Joined: Tue Oct 02, 2007 7:12 pm
- Location: Albany. 400km South of Perth
Re: Mango Gearing changes.
Postby John Lewis » Sun Dec 09, 2012 7:08 pm
Great minds and all that.
I played with that Soulbikes spreadsheet the other day before I had to go to the city and I looked at the gearing with the Alfine.
My current setup gives 22.8 to 115 GI which is 8.7 to 44.1 kmh at cadence of 80RPM. I need a lower low ad a higher high. I'd like say 12 to 120 GI like my trike.
Might be moot anyway as I mentioned in my email.
John
I played with that Soulbikes spreadsheet the other day before I had to go to the city and I looked at the gearing with the Alfine.
My current setup gives 22.8 to 115 GI which is 8.7 to 44.1 kmh at cadence of 80RPM. I need a lower low ad a higher high. I'd like say 12 to 120 GI like my trike.
Might be moot anyway as I mentioned in my email.
John
Jump to
- 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
Brought to you by Bicycles Network Australia | © 1999 - 2024 | Powered by phpBB ®
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.