Stem shifters

Hello, there!

I'm not sure if this is the correct location for this question or if it was answered somewhere I couldn't find previously, so let me know.

I just bought a Bridgestone 100 Mixte to bop around town and to ride to school next year, nothing fancy. I found it on craigslist and am happy with her condition.

However, this little bike has stem shifters. :confused:

I haven't had much time to play around with it yet but I know I looked silly jolting around today. I feel like I'm trying to learn to drive stick shift again!

Does anyone have a simple explanation/tips to help me get the hang of this?

Much appreciated.

by stem shifters do you mean shifters on the downtube??? or do you mean lever shifters on the bar end??? or twisty shifters or trigger shifters near or on the handles on a bike with straight handlebars like a mountain bike?? I could not find a photo of your bike and was unable to figure out what you meant by stem shifters - can you post a photo of your shifters??

debi

Time and patience :) I took me a while to figure out to push slowly on the right (rear) so I wasn't skipping multiple gears.. the left (front) was less touchy since it was pretty much switching from just one or the other.

You can also check to see if the cables are adjusted properly so that the derailleurs can shift through the whole range (a stand is helpful for this, but if not, a friend can hold the rear end up for you). There may or may not be limit screws on the derailleurs, and you may or may not need to adjust the cables (and your bike may or may not have barrel adjusters, so you may need to do it the hard way).

ETA, for anyone wondering, stem shifters look like so:
http://farm3.static.flickr.com/2787/...06eb75045f.jpg

They were more common in the 70's and 80's.

Stem shifters? Interesting! I haven't seen such. Can you post a pic when you get a chance; I'm intrigued.

I learned something new - thanks for the photo

there is a little "d-shaped ring" that comes out from the side at the bottom. If so - you may need to turn this to the right or left to adjust the tension of the shifting.

good suggestions above too!

debi

Stem shifters actually came on bikes BEFORE the downtube shifters.:p Last year, I actually had a customer that needed theirs replaced... and although I looked for quite some time, I actually was able to find some of pretty good quality.

Enjoy !!

Stem and downtube shifters are both friction shifters and were both in use at the same time in the 70s. Not sure if one came first, but I'd guess downtubes. Stem shifters came on low-end bikes for casual riders who wanted to sit upright. They came on bikes that also came with "safety levers" on the brakes (not always, but the same type of riders who wanted stem shifters often wanted safety levers). Luckily, stem shifters went out of fashion, as being on a moving stem made them awkward to use. Downtube shifters remained the norm for decades. Many stem shifters took cables with the now almost obsolete lug ends that you'll only see on double-ended gear cables.

The D-ring on the side of the lever is just tension adjustment for the lever -- too loose and the derailleur won't stay in gear, too tight and you can't hardly shift. Do make sure there is no significant cable slack when the levers are all the way forward.

Stem shifters can be replaced with downtube shifters if you can find the clamp-on variety (and be sure to clamp them good and tight or they'll slide down the frame from cable tension and scrape your paint). I find downtube shifters much easier to control in terms of making fine derailleur adjustments, and they put your hand in a more natural position. You can also use bar-end shifters if you can find a clamp-on cable stop for the downtube.

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Originally Posted by DebW

being on a moving stem made them awkward to use.

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Now that I finally learned why heavy tourers don't use brifters, can you explain why they DO come with bar-ends instead of down-tube shifters? It would seem to me that bar-end shifters have the same issue - worse even.

I'm thinking if I ever get around to building up a tourer, I'll stick with down-tube shifters...

Wow, y'all who've never seen stem shifters are making me feel awfully old...

I've found stem shifters to be adequate, but I prefer downtube or bar end shifters on older bikes. Stem shifters typically were on lower-quality/priced bikes. I found them kindof unstable when shifting.

For you young'uns, shifters integrated into the brake levers are a pretty new development...I had never tried them until I bought my Luna in 2005. But that might be because the bike that my Luna replaced was a 1983 Vitus with downtube shifters. Classic!

Oakleaf - bar end shifters are fantastic (to me). Very stable. You can see what gear combo you are in by looking at the shifter position instead of having to (dangerously) look down at the chain rings/cassette. Easier to fix than integrated shifters, too, if you are on the road and in a remote place. Easier to adjust. Easier to use than downtube shifters because you don't have to move your hand as far. The only drawback for me is that they do extend the length of the bars, and I'm kindof a klutz and so I'm always bumping my leg into the shifters, which result in some interesting bruise patterns (I bruise easily).

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Originally Posted by OakLeaf

Now that I finally learned why heavy tourers don't use brifters, can you explain why they DO come with bar-ends instead of down-tube shifters? It would seem to me that bar-end shifters have the same issue - worse even.

I'm thinking if I ever get around to building up a tourer, I'll stick with down-tube shifters...

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Why don't they come with brifters? Is it because STI shifters are overly complicated to fix on a tour if there is a problem?

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Originally Posted by Catrin

Why don't they come with brifters? Is it because STI shifters are overly complicated to fix on a tour if there is a problem?

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Exactly. (Basically, most shops will tell you they're not serviceable at all, although Shimano does have part numbers for every part in the exploded diagram and a little tool to insert the spring - so SOMEONE must service them. ;))

I feel sooooo ancient . . . . .

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Originally Posted by OakLeaf

Exactly. (Basically, most shops will tell you they're not serviceable at all, although Shimano does have part numbers for every part in the exploded diagram and a little tool to insert the spring - so SOMEONE must service them. ;))

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I suspect that might be primarily because it's just not economical for most shops to service brifters.. it's less work and probably (much) more profit to flat out replace them... not to mention faster if the shop doesn't carry those small parts in stock.

Personally I think I'd want thumbies over bar-end shifters on a touring bike, but having never tried either it's hard to say :p I don't particularly mind the stem shifters on my mixte... since there aren't a ton of gears to mess with :)

I have stem shifters on my older Motobecane. They were a pain at first because the little D-ring wasn't tight enough. Now that I know to check it I haven't had any problems.

[QUOTE=sarahspins;502171
Personally I think I'd want thumbies over bar-end shifters on a touring bike, but having never tried either it's hard to say :p I don't particularly mind the stem shifters on my mixte... since there aren't a ton of gears to mess with :)[/QUOTE]

I will let you know what I think of my bar-ends once I am brave enough to move my hands to shift - or grow tired enough of having a functional fixee touring bike to do the same :) I've already given myself permission to change bars and go back to trigger shifters if I hate the bar end shifters - but I have to give them an honest trial. Everyone else has seemed to do well with them :o

Not I. I hated bar end shifters.

My husband likes them but with my smaller hands I could never keep proper hold of the bar while manipulating the lever. Trying to shift under ultra low speed or high speed conditions was always hairy.

I also like the snappiness of brifters (having nearly rear-ended multiple people with bar ends who've lost their "mo'" on rolling terrain) because your hands are almost always positioned for an immediate shift. Bar end shifters themselves aren't slower shifting but the rider has to have her hands on the shifter ahead of time.

For loaded touring in the back of beyond, bar ends would be more serviceable, but it's not like we wear out brifters very often. We do ride Campy which are re-buildable but the parts aren't exactly stocked by every LBS.

That's why going back to downtube shifters is more appealing to me.

It's less of a reach than a water bottle, the reach works to centralize your mass rather than taking your hands out to the absolute ends of the bars where the slightest wrong movement will affect your steering, plus like most people my age I'm experienced with them.

It's nice to be able to cover both brakes while shifting, is all - you never know. I don't really find brifters any quicker than properly adjusted indexed downtube shifters.

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Originally Posted by OakLeaf

I don't really find brifters any quicker than properly adjusted indexed downtube shifters.

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That's why I said "Bar end shifters themselves aren't slower shifting" (or downtube shifters). It's really more a matter of where the rider's hands are when the shifting needs to happen. It's most apparent on rolling terrain where you just need quick shifts of the front der to maintain momentum but you like to honk over the rollies from the top of the hoods. Takes a lot of hand movements and forethought.

The mechanical action of the shifting isn't really any different.

Of course, I've seen lots of riders come to a screeching halt on rollers even with brifters because they haven't figured out the basics of shifting.

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Originally Posted by SadieKate

I feel sooooo ancient . . . . .

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No, just experienced and knowledgeable;)

A fine vintage??? :rolleyes:

Thanks for all the helpful input! I practiced with the stem shifters again today. It's actually a lot easier to get the hang of than I thought it would be. I'm liking them a lot.

I had stem shifters on my old 10-speed bike from the late 70's

I have these on order for my Peugeot mixte.
It currently has stem shifters.