Fun triple GEARING setup

On Sunday, November 29, 2015 at 7:25:49 AM UTC-8, wrote:
Just had to chime in. I have been pretty happy with my double chainring, 9-speed setup: a 34 - 50 compact crankset with 26 - 12 cogs. It gives a 35-inch low and it's mostly a two-tooth-increment cassette. We have a lot of hills around here.

I have a similar 10sp set-up on my fast bike, except its an 11-25 in back. Even in my current state of decrepitude, it provides a low enough low for all the hills around here, assuming you're not climbing all of them in one day. I might throw on a few more teeth If I had to do more than 10K feet of climbing in a day. Obviously, gear selection is very personal based on fitness and climbing style.

Oddly enough, I ride with a woman racer whose rain bike is an old Cannondale R500 with the same triple set-up that Sir has -- a corn-cob in back and 28/38/48 chain rings or something very close to that. She loves the small jumps between gears and has no problems on the hills whatsoever.

-- Jay Beattie.

.. She loves the small jumps between gears and has no problems on the hills whatsoever.


nnnnnnnn

is that simplifying gear shifting moving choice to 1-2-3 one step, with the rear staying to one side or the other ?

could be the woman racer is exercise simple minded.

Sir Ridesalot wrote:
On Sunday, November 29, 2015 at 10:19:14 AM UTC-5, Duane wrote:
sms wrote:
On 11/29/2015 3:41 AM, John B. wrote:
On Sat, 28 Nov 2015 11:55:22 -0800 (PST), Sir Ridesalot
wrote:

I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my
spare cassettes and took out the pins to separate the cogs. Then I
sorted the cogs and built myself a 9-speed straight block 11-19
cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road
surfaces ranging from smooth as glass pavemet to very bumpy dirt roads.

It seems like I was able to get the EXACT gear I wanted even when there
were only slight variations in the inclines or road surface changes.

I just might leave this as it is.

Cheers

That is roughly what I use on my "Phuket Bike". I probably have never
used the 108" combination but I can tell you that I certainly use the
lowest gear. Usually coming home from a 4 hour ride and climbing the
big hill I need to get over to reach the house :-)

--

Cheers,

John B.


39.8 as the low gear on a triple. Must nut be very steep hills. You'd be
doing a lot of walking around here. An 11-19 seems especially strange
with only a one tooth difference per gear.

This is what you'd use here, a 12-36:
http://www.jensonusa.com/Shimano-CS-HG400-9-Speed-Cassette.

Or do a 3 x 11 with this 11-42:
http://www.jensonusa.com/Cassettes/Shimano-XT-CS-M8000-11-Speed-Cassette


He lives in Ontario. Why does he need a bike that can get up your hills?


--
duane

Once again SMS shows he doesn't know what he's talking about.

My 28 - 19 low gear of 39.8 gear inches isn't that much higher than the
37.6 gear inches of a 39 - 28 double.

I can climb some prety steep hills with my 39.8 low gear. Besides, like
yiou said, my gearing is for me in the area I ride in not for someone
living in the mountains.

Cheers


I did the Defi Velo Mag in Shawinigan with a 53/39 11-27t. No 20% climbs
but some decent grades none the less. I doubt I'd try it in the Rockies
though.

--
duane

On Saturday, November 28, 2015 at 6:24:05 PM UTC-8, wrote:
On Saturday, November 28, 2015 at 7:14:24 PM UTC-7, Sir Ridesalot wrote:
On Saturday, November 28, 2015 at 8:11:10 PM UTC-5, wrote:
On Saturday, November 28, 2015 at 12:55:25 PM UTC-7, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my spare cassettes and took out the pins to separate the cogs. Then I sorted the cogs and built myself a 9-speed straight block 11-19 cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road surfaces ranging from smooth as glass pavemet to very bumpy dirt roads.

It seems like I was able to get the EXACT gear I wanted even when there were only slight variations in the inclines or road surface changes.

I just might leave this as it is.

Cheers

1.SR's fast
2.SR LIVES ON A POOL TABLE
3.Future activities include the Mile

Kin yah no read Laddie? That 28 - 19 gear is 39.8 gear inches and a 42 - 28 gear is 40.5 gear inches. Either is plenty low enough for a LOT OF HILLS.

Cheers

delusional

)))))

On Saturday, November 28, 2015 at 6:24:05 PM UTC-8, wrote:
On Saturday, November 28, 2015 at 7:14:24 PM UTC-7, Sir Ridesalot wrote:
On Saturday, November 28, 2015 at 8:11:10 PM UTC-5, wrote:
On Saturday, November 28, 2015 at 12:55:25 PM UTC-7, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my spare cassettes and took out the pins to separate the cogs. Then I sorted the cogs and built myself a 9-speed straight block 11-19 cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road surfaces ranging from smooth as glass pavemet to very bumpy dirt roads.

It seems like I was able to get the EXACT gear I wanted even when there were only slight variations in the inclines or road surface changes.

I just might leave this as it is.

Cheers

1.SR's fast
2.SR LIVES ON A POOL TABLE
3.Future activities include the Mile

Kin yah no read Laddie? That 28 - 19 gear is 39.8 gear inches and a 42 - 28 gear is 40.5 gear inches. Either is plenty low enough for a LOT OF HILLS.

Cheers

delusional

)))))

On Sunday, November 29, 2015 at 8:37:22 AM UTC-6, Clive George wrote:

I've been using a 13-23 9speed with 30/42/52 triple for years now. Due
to slackness in maintenance the 23 has been inaccessible for most of
those, so effectively 13-21 8 speed.

I have a bike with similar gearing. Except it has 52-42-24 rings on the triple. Not sure why someone would not use the smallest ring possible on the inner ring on a triple crank. You may have one of those awful Shimano road cranks where the inner ring is limited to 30 teeth, 96mm bcd. I put a 13-28 cassette on my bike when riding in the Rockies or other hilly areas.

On Saturday, November 28, 2015 at 1:55:25 PM UTC-6, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my spare cassettes and took out the pins to separate the cogs. Then I sorted the cogs and built myself a 9-speed straight block 11-19 cassette. Tires are 2È x 2.0 knobby ones.



30 years ago I had a custom 7 speed Suntour freewheel on my bike. 13-14-15-16-17-20-24 gears. 52-40 chainrings. The 1 tooth jump in cogs is wonderful.

Sir Ridesalot wrote:

On Saturday, November 28, 2015 at 8:11:10 PM UTC-5, wrote:
On Saturday, November 28, 2015 at 12:55:25 PM UTC-7, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my
spare cassettes and took out the pins to separate the cogs. Then I
sorted the cogs and built myself a 9-speed straight block 11-19
cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road
surfaces ranging from smooth as glass pavemet to very bumpy dirt
roads.

It seems like I was able to get the EXACT gear I wanted even when
there were only slight variations in the inclines or road surface
changes.

I just might leave this as it is.

Cheers

1.SR's fast
2.SR LIVES ON A POOL TABLE
3.Future activities include the Mile

Kin yah no read Laddie? That 28 - 19 gear is 39.8 gear inches and a 42 -
28 gear is 40.5 gear inches. Either is plenty low enough for a LOT OF
HILLS.

Cheers

for shallow grades or on hardpack/roads yes 40inch will get you up no
problem, but even folks on single chainrings make sure they are sub 30in
as even trail centers have some climbs, and if you ride Mountains or
hills unless it's just fireroad very few will manage a 28-19 up
rocky/muddy 20% climb.

Roger Merriman

On Saturday, December 5, 2015 at 1:18:07 PM UTC-5, Roger Merriman wrote:
Sir Ridesalot wrote:

On Saturday, November 28, 2015 at 8:11:10 PM UTC-5, wrote:
On Saturday, November 28, 2015 at 12:55:25 PM UTC-7, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my
spare cassettes and took out the pins to separate the cogs. Then I
sorted the cogs and built myself a 9-speed straight block 11-19
cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road
surfaces ranging from smooth as glass pavemet to very bumpy dirt
roads.

It seems like I was able to get the EXACT gear I wanted even when
there were only slight variations in the inclines or road surface
changes.

I just might leave this as it is.

Cheers

1.SR's fast
2.SR LIVES ON A POOL TABLE
3.Future activities include the Mile

Kin yah no read Laddie? That 28 - 19 gear is 39.8 gear inches and a 42 -
28 gear is 40.5 gear inches. Either is plenty low enough for a LOT OF
HILLS.

Cheers

for shallow grades or on hardpack/roads yes 40inch will get you up no
problem, but even folks on single chainrings make sure they are sub 30in
as even trail centers have some climbs, and if you ride Mountains or
hills unless it's just fireroad very few will manage a 28-19 up
rocky/muddy 20% climb.

Roger Merriman

32 x size 15EE

On Saturday, December 5, 2015 at 1:18:07 PM UTC-5, Roger Merriman wrote:
Sir Ridesalot wrote:

On Saturday, November 28, 2015 at 8:11:10 PM UTC-5, wrote:
On Saturday, November 28, 2015 at 12:55:25 PM UTC-7, Sir Ridesalot wrote:
I just built up another MTB converted to drop bars.

I put on a 28-38-48 triple crankset. For fun I rooted through all my
spare cassettes and took out the pins to separate the cogs. Then I
sorted the cogs and built myself a 9-speed straight block 11-19
cassette. Tires are 2È x 2.0 knobby ones.

The high gear is 108 gear inches and the low gear is 39.8 gear inches.

Took it out for a few rides on rolling terrian with varied road
surfaces ranging from smooth as glass pavemet to very bumpy dirt
roads.

It seems like I was able to get the EXACT gear I wanted even when
there were only slight variations in the inclines or road surface
changes.

I just might leave this as it is.

Cheers

1.SR's fast
2.SR LIVES ON A POOL TABLE
3.Future activities include the Mile

Kin yah no read Laddie? That 28 - 19 gear is 39.8 gear inches and a 42 -
28 gear is 40.5 gear inches. Either is plenty low enough for a LOT OF
HILLS.

Cheers

for shallow grades or on hardpack/roads yes 40inch will get you up no
problem, but even folks on single chainrings make sure they are sub 30in
as even trail centers have some climbs, and if you ride Mountains or
hills unless it's just fireroad very few will manage a 28-19 up
rocky/muddy 20% climb.

Roger Merriman

The funny and strange thing about a lot of bicyclists (or so it seems from reading some of these replies) is that they choose and install gearing for the terrain *WHERE THEY RIDE* NOT where someone else hundreds or even thousands of miles away rides.

I've ridden some pretty darn steep hills with just a 42 x 24 combination on one of my road bicycles.

Cheers

Cheers