Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-08-08, 02:28 PM   #1
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
pros and cons of gear/speed bike...

since there is a thread about single speed...i want to make a thread about gear bike. we all know about the pros...which is making it easier to go uphill. since i'm a noob...i'm not sure what is the cons. i know there are two gear bike so far which includes derialluers and non-deialluers like the sturmer archer hub 8 speed bike like the downtube mini. lets talk about the mini with the sturmey archer first. i rode one of these bike and when i switch from higher gear like a 4-5 down to a 3 or 2 or 1...the wheel kinda spin on me. i'm not sure how to describe it...but i hear a click or clack and spin on me..felt like i was out of control for a sec or 2. is this normal or i have a defective bike? there was no problem going from a lower gear like a 1 or 2 or 3 up to 4 or 5 or 6 or 7 or 8...only problem going from a higher gear to a lower gear. so is this consider a con?
vincentnyc is offline   Reply With Quote
Old 10-08-08, 03:29 PM   #2
mulleady
The Metropolis, UK
 
Join Date: Aug 2007
Bikes:
Posts: 2,353
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
since there is a thread about single speed...i want to make a thread about gear bike. we all know about the pros...which is making it easier to go uphill. since i'm a noob...i'm not sure what is the cons. i know there are two gear bike so far which includes derialluers and non-deialluers like the sturmer archer hub 8 speed bike like the downtube mini. lets talk about the mini with the sturmey archer first. i rode one of these bike and when i switch from higher gear like a 4-5 down to a 3 or 2 or 1...the wheel kinda spin on me. i'm not sure how to describe it...but i hear a click or clack and spin on me..felt like i was out of control for a sec or 2. is this normal or i have a defective bike? there was no problem going from a lower gear like a 1 or 2 or 3 up to 4 or 5 or 6 or 7 or 8...only problem going from a higher gear to a lower gear. so is this consider a con?

mulleady is offline   Reply With Quote
Old 10-08-08, 03:38 PM   #3
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mulleady View Post
i told u i'm a noob....so can any1 answer my questions instead of nothing to contribute.
vincentnyc is offline   Reply With Quote
Old 10-08-08, 05:50 PM   #4
LittlePixel
Raleigh20 PugFixie, Merc
 
LittlePixel's Avatar
 
Join Date: Sep 2004
Location: London UK
Bikes: 1982 Raleigh Twenty Hotrod Fixie; 1984 Peugeot Premier Fixie, 2007 Merc Lightweight folder
Posts: 1,982
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
it feels spinny because you are changing the ratio. This means you are turning the pedals more to make the bike do the same thing. This is good on a hill as you are converting more leg movement into actual usable power on the bike. Gosh I wish you americans drove cars with a manual gearbox. it would be sooooooooooo much easier to describe.

Try opening a door in your house with the handle. Easy right?
Try opening it by pushing it right near the hinges... Not so easy?

This is the basic principle of fulcrums, on which gearing is based - being in a low gear is like using the handle - you don't have to push HARD but you have to push the door FAR to open it.

Being in a high gear is like pushing it open near the hinge - it takes more EFFORT but you can open it without moving your hand very far.

Think about this for a minute and then try and translate it to your bike.
LittlePixel is offline   Reply With Quote
Old 10-08-08, 06:44 PM   #5
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by LittlePixel View Post
it feels spinny because you are changing the ratio. This means you are turning the pedals more to make the bike do the same thing...
yes i understand the concept of gearing...but when change from high gear to low gear...it was making "clicky clacky" sound and i felt like out of control...is that normal? i was afraid if i keep doing this..it will wear out the chain...am i paranoid?
vincentnyc is offline   Reply With Quote
Old 10-09-08, 12:25 AM   #6
mulleady
The Metropolis, UK
 
Join Date: Aug 2007
Bikes:
Posts: 2,353
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
i told u i'm a noob....so can any1 answer my questions instead of nothing to contribute.
mulleady is offline   Reply With Quote
Old 10-09-08, 01:00 AM   #7
noob_island
Member
 
Join Date: Sep 2008
Bikes:
Posts: 45
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think that the "spinny" feeling is the gear not catching. I have an old bike and the derailleur sucks. When I switch to my first gear or last gear fast, I pedal and it seem like the chain is not catching. I dial it back and slowly go to the first or last gear and then I feel a resistance.

This is kind of off topic but I was looking for a 5 speed derailleur to swap out my crappy one, can I use a 6/7 speed derailleur instead?
noob_island is offline   Reply With Quote
Old 10-09-08, 01:18 AM   #8
Pine Cone
Senior Member
 
Join Date: Nov 2006
Location: Western Washington
Bikes: 2-many...2 road bikes, 2 fixed wheels, 3 tandems, 2 recumbents, 2 cyclecross, 3 mtb, 4 folders
Posts: 298
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by noob_island View Post
This is kind of off topic but I was looking for a 5 speed derailleur to swap out my crappy one, can I use a 6/7 speed derailleur instead?
You bet'cha!

The only problem may come if you have indexed shifting, in which case the brand of derailleur or the type (mountain vs. road) might come into play.

If you have the option for friction shifting then the number of "speeds" doesn't matter. 5-cog freewheels/freehubs are narrower than 6, 7, 8, 9 and 10-gear derailleurs, so indexed shifting cable-pull depends on where the shifter expects cogs to be located, and expects a specific number of cogs that need to be shifted.

Modern SRAM and Shimano shifters pull different lengths of cable for each gear shift as do road vs. mountain bike front derailleurs. I think mtb and road rear derailleur shift distances are the same within a given brand, but someone else might know different...

When in doubt, find a older friction shifter and you can use anything.
Pine Cone is offline   Reply With Quote
Old 10-09-08, 06:43 AM   #9
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mulleady View Post
stop stalking me like a maniac...are ur feeling hurt cause i call u missy the other day? sorry..but ur screen name sounds like my lady or a mullet and can't get out of my head.
vincentnyc is offline   Reply With Quote
Old 10-09-08, 09:52 AM   #10
somnatash
eight spokes
 
somnatash's Avatar
 
Join Date: Jan 2008
Location: Ruhr district, Germany
Bikes: merc, brompton, roadster, cheap every day bike
Posts: 478
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
vincentnyc,
Please, go to the singlespeed forum and ask there. You will find much more professionals on this topic and also enthusiastic thought on cons on geared bikes (the lack of the cons in geared bikes being the pros of ss). Or look at the threads over there, you will find a lot of "cons" and will have your question answered in detail.
somnatash is offline   Reply With Quote
Old 10-09-08, 10:26 AM   #11
folder fanatic
Banned.
 
folder fanatic's Avatar
 
Join Date: May 2005
Location: Anti Social Media-Land
Bikes:
Posts: 3,078
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
stop stalking me like a maniac...are ur feeling hurt cause i call u missy the other day? sorry..but ur screen name sounds like my lady or a mullet and can't get out of my head.
People can be very disconnected from proper manners on the Internet. Sometimes they don't have the proper signals or reminders of decorum like they do in real life.

My own Boardwalk started out as a single speed. But since I live in a area of rolling hills-and getting older to boot-I opt for the more reliable simple internal hub gear drivetrain. I still have the simplicity feel of the single speed and yet my gearing is within the hub protecting it like no derailleur gears can be. This is a critical point for smaller wheeled folding bikes.
folder fanatic is offline   Reply With Quote
Old 10-10-08, 05:04 AM   #12
timo888
...poet...
 
timo888's Avatar
 
Join Date: Jul 2008
Location: Mid-Atlantic USA
Bikes: bikes
Posts: 624
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
...lets talk about the mini with the sturmey archer first. i rode one of these bike and when i switch from higher gear like a 4-5 down to a 3 or 2 or 1...the wheel kinda spin on me. i'm not sure how to describe it...but i hear a click or clack and spin on me..felt like i was out of control for a sec or 2. is this normal or i have a defective bike?
When you are ready to shift on the Sturmey Archer gear hub, you should ease off pedaling, make the shift, and then start pedaling again. Some other internal gear hubs, such as the Shimano Alfine, allow you to keep pedaling during the shift. You might see that capability called "shifting under load".

Sometimes the Sturmey Archer 8-speed hub will suddenly slip so the pedals spin freely; that is not normal (though it may not be unusual) and it indicates that the hub needs to be readjusted.

Regards
T
timo888 is offline   Reply With Quote
Old 10-10-08, 07:20 AM   #13
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by timo888 View Post
...Sometimes the Sturmey Archer 8-speed hub will suddenly slip so the pedals spin freely; that is not normal (though it may not be unusual) and it indicates that the hub needs to be readjusted.
....
T
yup...that's what it felt like...going from a higher gear/speed like a 4-5 down to a 3-2-1...it "slips." i found a quick solutions for it....for example, when i'm ready to shift from a 4 to a 3...i stop pedaling...then shift to a 3...then i back pedal a couple of time and then forward pedal again.

obviously i only can do this before going uphill...if i try to shift gear going up hill...i feel the "slippage" and out of control. so it is a pain in the ass to remember doing this before a hill. i have no problem going from a lower gear to a higher gear...no "slippage" what so ever and no back peddling to "set" the gear in. i guess i got a defective sturmey archer 8 speed...when i bring it to my lbs...what should i tell them to adjust the sturmey archer and how would they adjust it and how easy is it to adjust the sturmey archer?

Last edited by vincentnyc; 10-10-08 at 07:43 AM.
vincentnyc is offline   Reply With Quote
Old 10-10-08, 09:44 AM   #14
datako
Senior Member
 
Join Date: Dec 2005
Bikes:
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
...i guess i got a defective sturmey archer 8 speed...when i bring it to my lbs...what should i tell them to adjust the sturmey archer and how would they adjust it and how easy is it to adjust the sturmey archer?
I reckon you guess wrong. The indexing for the gears is in the changer, so if your cable has stretched you can get this effect.

If they don't know how to adjust the hub (hint - it's not by random twiddling), get another lbs
datako is offline   Reply With Quote
Old 10-10-08, 01:29 PM   #15
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by datako View Post
I reckon you guess wrong. The indexing for the gears is in the changer, so if your cable has stretched you can get this effect.

If they don't know how to adjust the hub (hint - it's not by random twiddling), get another lbs
so it is the cabling for the gear? when i bring it to the lbs..tell them to check the cable and loosen it a bit intead of checking hub...since the mini only 1 month old?
vincentnyc is offline   Reply With Quote
Old 10-10-08, 04:30 PM   #16
datako
Senior Member
 
Join Date: Dec 2005
Bikes:
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by vincentnyc View Post
so it is the cabling for the gear? when i bring it to the lbs..tell them to check the cable and loosen it a bit intead of checking hub...since the mini only 1 month old?
They should know what it will be. It is usual for new cables to stretch* and this throws the adjustment out. This is one of the reasons your lbs wants to see your bike back at around 100 miles use.

*The cable doesn't actually stretch, but the components seat in, and possibly some compression of the outer cable casing, with the end result that there is less tension on the inner. The inner therefore appears to have stretched.

If you want to know more about the maintenance of the hub the manual is here.

For those who don't want to read all that :

"Gear Adjustment
1. Select 4th gear on the shifter.
2. Turn the cable-adjusting screw until the yellow arrow on the pulley is aligned within the yellow indicator of the fulcrum lever. Tighten the cable-adjusting locknut to locate the gear changing system.
3. Select 1st gear, rotate the pedal crank, change back to 4th gear and check the gear adjustment.
4. Retry the stages description above when the gear changing is not correct.

▲WARNING: The hub must not be ridden out of adjustment as this may damage the internal parts and cause the hub to malfunction."

Last edited by datako; 10-10-08 at 04:40 PM. Reason: Added info
datako is offline   Reply With Quote
Old 10-10-08, 06:25 PM   #17
vincentnyc
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 749
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Well when I was about to go up a steep hill today, there was a roadie and I think he has a derauiller and when he change his gear, I saw him "spin" and "click" "clack" on his chain. So I guess it is normal if I'm having the same thing? Mine doesn't happen all the time. For example, I just try today and stop pedaling and change from a gear 4 down to a 1 and it didn't spin or make click clack sound on me.

Last edited by vincentnyc; 10-11-08 at 07:15 AM.
vincentnyc is offline   Reply With Quote
Old 10-11-08, 04:12 AM   #18
joose
pooh bear
 
joose's Avatar
 
Join Date: Jul 2008
Location: Long Eaton, Derbyshire
Bikes: Dahon D3
Posts: 158
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Perhaps you should take up walking vincentnyc? Less things involved to confuse you..
joose is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:29 PM.