Wednesday 30 March 2011

Brompton Ergon GC2 grips and bar ends

Note: Since writing this post I have fitted some GR2 grips and bar-ends which overall I prefer to the GC2s.

The thing I probably missed most when moving over from my larger bike were bar ends. I find them really helpful for going up hills, and also more comfortable than holding the main handle bars in general.

Looking at how the Brompton folds it seems that bar-end choice is limited by the clearance between the folded handlebar and the front wheel. So I started researching what other people had managed to fit onto their Bromptons. The most popular choice seemed to be the Ergon GC2 grips with integrated stubby bar ends, so decided to try them out. They come in three different lengths; normal, short for use with grip shifters, and one short one long for use with a Rohlhoff shifter. The grip shift version would have been too short so I went for the normal length knowing that I'd have to cut them down a little.

Fitting them was fairly easy, firstly I removed the original grips. These are made of foam and a glued on to the handle bar so I had to cut them to get them off. The glue used to stick them in place wasn't too hard to scrape off using an old plastic store card.

I then moved the gear shifters and brake levers as far inboard as I could (as I have an M type Brompton that wasn't very far) and used a pen knife to cut the grips around the brake levers. (Note, if you plan to change your brake levers you should do so before cutting up your new grips. The replacement brake levers I got [that's another post] require far less cutting of the grips so I now need to get a second pair!)



The grips and bar ends are both secured by a 4mm allan bolt in the underside of the bar end. I recommend tightening it so that you can just about move the grips and then sitting on the bike to adjust the grip and bar end positions. Even then I'd also recommend carrying an allan key with you for a week or two to tweak the positions as you ride.

I pushed my handlebars as far forward as the fold allows and the bar ends don't interfere with the fold, although the lefthand one does scrape on the ground sometimes when the bike is folded.



The new grips are nice, and definitely better than the Brompton ones. Although, for me at least, they are not the revelation that they are for some. The bar ends are just about long enough to provide a second hand position when combined with the hand grip. As far as providing extra leverage goes, the bar ends are usable over short distances but I wouldn't want to use them on a long hill. Also being combined with the grips, the bar ends take up minimal space on the handlebar, which is useful given the very limited space on the M-type handlebars.

So, overall I'm happy with them, and as I indicated above I'm planning to get a replacement pair. Although I've now pushed the handlebars back a bit so I'm going to try some longer bar ends next time.


8 comments:

  1. How about it you don't have the bar end? Would it still scrap the ground?

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  2. On uneven ground the end of handlebar might touch down although I never noticed it as a problem. I'd suggest looking at some photos of a standard M-type Brompton folded. If you're really worried then the S-type handlebars seem to be much higher off the ground when folded.

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  3. I got my M6R (black) two weeks ago and I'm loving it so far. Useful info about the handlebar ends. My current obsession is the saddle height and fore-aft position.

    I find the brakes are fine, I had to break hard this morning and actually managed to skid the back wheel lol.

    I'm finding the rest of your blog interesting. Mainly because I'm a software engineer, who's into photography, and cycles a brompton.

    Are we alone as a species? :-p

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  4. Hi John, glad you're enjoying your Brompton, as you can see from this blog getting mine set up has become a bit of an obsession so be prepared for a good amount of tinkering. If you're interested in bar-ends, then I do prefer the GR2s to the GC2s. I also have a couple of posts about replacement handlebars coming as soon as I find time to finish them.

    I'm at least lucky on the seat height - as high as it goes is perfect for me.

    I work with another software engineer who's into cycling and photography - although he doesn't own a Brompton, so we're not quite alone :)

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  5. do you think the touching the ground issue would be any problem if you had the straight sport handlebars? ... Like I do ;-)

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  6. If you mean you have a standard Brompton S type then as far as I can see from photos on Google you shouldn't have a problem. If you mean that you've added some different handlebars to your Brompton then I really couldn't say. It should be easy enough to tell though, just fold the bike and if the end of the handlebars is more than say 5cm off the ground then I can't see you having any trouble at all, you could probably get away with less.

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  7. Hi is there a chance you can post a photo of your new grips while the bike is folded so I can see what kind of clearance you have? Thanks for a very handy post. Tony

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  8. Hi, unfortunately I don't have a picture of the GC2 barends on the original handlebars. I do have a picture of the longer GR2 barends on the original handlebars here: http://blog.dancorder.com/2011/07/brompton-ergon-gr2-grips-and-bar-ends.html as you can see there is barely any clearance.
    I have since tried a couple of different sets of handlebars that gave rather more clearance: http://blog.dancorder.com/2011/10/handlebars.html and http://blog.dancorder.com/2012/07/more-handlebars.html
    Hope that helps

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