Showing posts with label grips. Show all posts
Showing posts with label grips. Show all posts

Saturday, November 13, 2010

Pulling the Trigger vs Doing the Twist: Thoughts on 3-Speed Gear Shifters

On bicycles with internally geared hubs, we typically see two types of gear shifters. The trigger shifter (pictured above) is a small gadget with a lever that is moved up and down. Today, this style of shifter usually accompanies Sturmey Archer hubs (though in Europe I have seen some lesser known models as well).

The twist shifter (pictured above) is a plastic and rubber enclosure that is built into the handlebar grip itself. To switch gears, you grab the rubber part and twist forward or backward. This style of shifter usually accompanies Shimano hubs.

After using both types of shifters on various bicycles I've owned to more or less the same extent, I have developed a strong preference for trigger shifters. When I tell people this, they tend to assume it has to do with "vintage aesthetics" - but actually, it has to do with comfort. A trigger shifter takes up very little space on the handlebars, as it is attached with a narrow bracket. This means that the shifter does not interfere with the gripping area, and allows me to install full-length grips on the handlebars.

By contrast, having a twist shifter installed effectively cuts your gripping area in half. Notice that the right handlebar grip on the Bella Ciao above is shorter than the left grip - necessary in order to make room for the shifter. Granted, you can also keep your right hand on the rubber portion of the shifter itself - but it's not very comfortable, especially as there is a tactile break between where the real grip ends and the shifter begins.

But why is it important how long your grips are, as long as you are able to fit your hands on them? The reason, is that having room to move your hands around on the handlebars, even a little, can be essential for hand comfort - especially on long rides. If you ride your bicycle for just a couple of miles or so at a time, then you might not get the urge to move your hands around. But the longer your ride is, the more fatigued your hands will get if you keep them in the same position. Some people are more sensitive to this than others, and those who have nerve damage in their hands (like yours truly) are particularly prone to it. The feeling can range from numbness, to "pins and needles" to a more severe sensation of electric current running through the hand. It is not good to experience this problem, and having room on the handlebars to move your hands around allows you to avoid it. Long grips can also help you switch between a more relaxed and a more aggressive position on your bike (by holding the grips further forward or further backward) - giving you some added control over speed.

Getting back to shifter styles, here is my right hand on the shortened grip that is integrated with the twist shifter on my Bella Ciao. As you can see, my hand covers the entire grip, with no room to move around - unless I place it on the shifter itself, though even then it is limited. And I had the same problem with this shifter on my previously-owned Pashley, which came with the 7-speed Shimano hub I innocently selected.

On the other hand, here is my hand on the grip I installed on my Gazelle. As you can see, there is room for another handful - which is only possible because of the trigger shifter.

I will note that one benefit of the twist shifter, is that it is more integrated with your hand position - which can be a plus if you switch gears very frequently. But on bicycles with internally geared hubs - especially 3-speeds - I have found that I tend to stay in one "ideal" gear most of the time, switching to a lower gear only when going uphill, and switching to a higher gear only when cycling very fast or downhill. Having to reach with my finger to pull the trigger has not caused me any inconvenience in comparison to using the twist shifter. Your experience, of course, may differ.

While I am not suggesting that everybody ought to run out and demand trigger shifters with their 3-speed bicycles, I am hoping that this comparison will provide some food for thought to those who are getting a new bike, or deciding which hub to select with a new build. I would also like to ask whether anybody knows where I can find a trigger shifter that is compatible with a 3-speed Shimano Nexus hub? Even if it involves rigging something up with a "thumbie" derailleur-style shifter, I am up for it. Thanks in advance for any advice.

Thursday, September 2, 2010

French Experiments Continue: Belleville Handlebars and Inverse Brake Levers

Spare bicycle parts, a restless spirit, and a willing "guinea pig" can make for a dangerous combination. In her latest reincarnation, Marianne sports VO Belleville handlebars and Dia Compe inverse brake levers - a practice run to determine how a similar set-up would feel on the Royal H. mixte.

Here are the bars and levers in all of their French glory - on a Motobecane mixte with an Ideale saddle.

The Belleville handlebars are similar to the Porteur handlebars shown here. Both are a classic style of upright bars found on vintage French city bicycles. These bars are narrow, with long gripping areas that are nearly parallel to each other - placing the rider's hands in a position similar to holding a tray.  The Bellevilles are 5cm narrower than the Porteurs (43cm vs 48cm) and are completely straight across the front (whereas the Porteurs have a slight forward sweep).

It is typical to see handlebars like this fitted with inverse brake levers. My assumption is that this is done to maximise the gripping area of the bars. Because the levers are installed at the ends, there are no interruptions along the handlebar's surface and the cyclist is free to move their hands pretty much along the entire bar.

The inverse brake levers you will find today are most likely either Tektro or Dia Compe. Here I have installed the latter, and you can see that their brown rubbery tips go nicely with twined handlebars. It surprised me to learn that some dislike the Dia Compes because of the brown tips and prefer the Tektro levers instead - which are all-metal. To me, the rubbery surface felt nice, but I suppose it is a matter of personal preference. If you have used either of these levers, I'd like to hear your thoughts.

Braking with inverse levers.  I have found that I am able to get pretty good leverage almost no matter where I hold my hand along the bar, with the exception of the very front.

Can't brake from here, near the corners. But if I move my hands 1-2 inches back, it will work. This set-up is amazingly versatile in terms of the hand positions it allows.

The inverse levers are set back from the bars far enough so that they do not interfere with the grip. You can see in the pictures that they are nowhere near my knuckles. Truly a neat design.

If you are curious about this type of French set up, both the bars and the levers are surprisingly inexpensive. You will like them if you are a fan of narrow handlebars, and if you prefer to hold your hands to the sides rather than flared out or straight in front of you. I certainly fit that description, so both the Belleville and the Porteur handlebars feel as if they were made just for me. The super-wide Albatross bars were comfortable enough, but with the Bellevilles and the Porteurs I get that "spot on!" feeling. I also think that they are better match for French bicycles - especially for the Motobecane's aggressive handling.

I will pause and confess here, that this is the last change I will be making to Marianne... because she no longer belongs to me. Yes, I did sell her after all - to a lovely local woman whose acquaintance I had the pleasure of making this morning. Riding the Motobecane with the French handlebars and inverse levers yesterday, I finally felt that this bicycle was "perfect" and experienced a calm sense of satisfaction - not dissimilar to how I feel when a painting is finally "finished" or when a photograph looks just right. And after that, it finally felt appropriate to let her go. I hope the new owner enjoys her as much as I hope to enjoy my Royal H. mixte - which I will most definitely fit with a similar handlebar set-up.

Oh - and if anybody wants some Nitto Albatross bars (the alloy version) or VO Milan bars, drop me a line. Thankfully, I have no more "spare" bicycles to put them on.