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Old 08-27-10, 08:09 PM   #1
cruisintx
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Call me crazy, but . . .

. . . I think I may like my rotating grip shifters on my Trek hybrid better than I do the brake-lever shifters on my Felt. That said, (and I'm not 100% commited to this yet), I would like to explore the possibility of converting the Felt to rotating grip shifters. Is this possible on a 27-speed road bike? I may even consider switching to a straighter handle-bar similar to the Trek 730 in order to facilitate this conversion. I know it sounds a bit nuts but the two positions I currently have on my Trek just work for me. (aero-bar and on the grips), while those on the Felt don't seem as comfortable for some of the longer rides I am making now. In addition, the grip shifters are always spot on when shifting while the brake shifters sometimes jump up and down on the rear and I frequently drop the chain either off the top or the bottom ring on the Felt. Anyone out there with enough knowledge to advise on how to or even pros & cons on this tought?
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Old 08-27-10, 08:28 PM   #2
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Need more info.

Is the Felt a road bike, or a hybrid/MTB/other?

SRAM makes the "GripShift" style twist shifters in two types -- their own in-house design with the 1:1 ratio, and the Shimano-ready 2:1. They can be had in 7, 8, and 9 speed designs. These are all for the MTB-style flat or riser bars, not road or bullhorn bars.

Unless you're handy and familiar with how to do this, you can get in over your head quickly.

There's nothing nuts about it -- some people prefer twist shifting, that's why they are still made.
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Old 08-27-10, 09:00 PM   #3
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the sloppy shifting on your brifter-equipped bike is probably not the fault of the brifters themselves, it sounds to me like you need some dérailleur adjustment.

You may still prefer grip shifters anyway, but I'm the exact opposite now. My old Raleigh has SRAM grip shifters, and they work well enough, but now that I've gotten used to the brifters on my new road bike, I've definitely come to see the light. My ultegra brifters shift like the smoothest, creamiest butter on the planet.

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Old 08-27-10, 09:04 PM   #4
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. . . I think I may . . . Is this possible on a 27-speed road bike? I may even consider switching to a straighter handle-bar similar to the Trek 730 in order to facilitate this conversion. . . . . . Anyone out there with enough knowledge to advise on how to or even pros & cons on this tought?
. . .
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Old 08-27-10, 09:37 PM   #5
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OK, you're crazy! If the chain is dropping off the top and bottom, you need some serious adjustments.
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Old 08-28-10, 12:21 AM   #6
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i feel the same way. the grip shift (Rohloff) on my current ride is, IMO, superior in every way to my former ride (Ultergra 9-speed brifters). i wasn't so sure i'd like the twist action of the Rohloff, having been a fan of brifters for 15 years, but after about 1500 miles in all kinds of riding, i absolutely love it. i can change even more gears in a single twist in either direction (as opposed to 3 or 1 on my brifters), and the integration that brifters supposedly provide (brake-and-change) is more or less the same as i have now (just two different pieces of hardware in the same spot---but both of them are *ahem* serviceable, unlike a brifter); it is a little faster to brake-shift-brake using a brifter---but of course, braking and shifting just changes cable tension---the gears don't actually change until you let loose of the brakes and pedal (for the Rohloff this is a non-issue).

of course, everyone has their own preference, and not all brifters or twist-grips are the same. but yeah, i'm all for a good twist-shifter now.


Edit: in the case of converting your Felt, it depends on your current shifting hardware. a 3x9 set-up, off the cuff, seems feasible for grip shifting; but not having ever checked this, i can't say for certain.

Last edited by pwdeegan; 08-28-10 at 12:27 AM.
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Old 08-28-10, 08:10 AM   #7
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I appreciate the feedback so far. I am just getting back into cycling after about a 10-year hiatus and the Felt F80 is the first bike I have owned with 'brifters' ( I like that). Like I stated in the first post this is still just a consideration and not a committed deal. I am learning from y'all and some folks on our local website so keep the comments coming. I will likely finish the year with the current set-ups and try to pay close attention to the comfort & fatigue levels on each bike. Here where I live in the Texas Panhandle, the wind blows most of the time so when it is above 20mph I take the Trek and ride in town to get relief from the wind and the terrain in town is fairly level. When the wind is down, I get on the Felt and ride the shoulders of the hiways and have pretty much nuthin' but hills. I figure my next best move will be to take the F-80 over to one of the shops in Amarillo and let them do a professional tune-up. If that straightens out the goofy shifting, I'll most likely leave things alone. If it doesn't, I'll keep exploring the grip shifters options.
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Old 08-28-10, 09:20 AM   #8
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I've seen grip shifters on drop bars before... Those are used on the piece-of-crap Walmart "GMC Denali" road bikes.

If you REALLY want grifters on your Felt road bike, maybe you can buy one of those GMC Denali junkers off Craigslist for cheap and salvage the 2-piece drop bars and put your own grifters and brake levers on it. It sure feels like sacrilege though, considering your Felt F80 already has a sweet full Ultegra setup (which when properly tuned, is NOT supposed to be anywhere as sloppy as you described!).

My 2007 Specialized Sirrus LTD (flat-bar road bike) uses Ultegra derailleurs and I can tell you they are very smooth-shifting.

Question is, do they even make grifters that work with Ultegra? I've never heard of anyone using grifters with Ultegra derailleurs so I don't know.
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Old 08-28-10, 10:29 AM   #9
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ya, I hear ya on the sacriledge issue. It's sort of like trailering a BMW motorcycle (better have a 1-iron strapped to the seat if you do). I have been tinkering with the adjustments some myself and it is far better now than when I first got the bike last spring. In fact, the last two rides I didn't drop off the front rings at all and the rear cluster shifted much better too. It's a 2005 model that had some serious racing use by a kid on a high school racing team. I have put a little over 800 miles on it this summer and do plan on getting that professional tune-up before making any changes. Keep in mind too, I'm a 56-year old fat guy just trying to drop some tonnage and improve the cardio conditioning; not racing nor participating in any kind of organized rides.

Last edited by cruisintx; 08-28-10 at 11:26 AM. Reason: think slower than I type
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Old 08-28-10, 03:46 PM   #10
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If you REALLY want grifters on your Felt road bike, maybe you can buy one of those GMC Denali junkers off Craigslist for cheap and salvage the 2-piece drop bars and put your own grifters and brake levers on it. It sure feels like sacrilege though, considering your Felt F80 already has a sweet full Ultegra setup (which when properly tuned, is NOT supposed to be anywhere as sloppy as you described!).
I know this is probably hyperbole, but if it's not, then its a very bad idea for very obvious reasons.

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My 2007 Specialized Sirrus LTD (flat-bar road bike) uses Ultegra derailleurs and I can tell you they are very smooth-shifting.
Does it use Ultergra brifters, too? Your derailleur can be setup to function with almost any standard cable shifter, even across brands. I used my brifters with an XT-rear, and it was also fine, though i don't personally like it as much as my Rohloff grip-shifter.

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Question is, do they even make grifters that work with Ultegra? I've never heard of anyone using grifters with Ultegra derailleurs so I don't know.
Yes. A quick search found several twist-grip shifters that are compatible with a Shimano derailleur and rear cassettes. They make versions that work from 6–9 speeds. If you use a 10-speed rear cassette then you're presently SOL, i guess (or maybe someone else makes one?). See: http://www.universalcycles.com/shopp...0&category=773
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Old 08-28-10, 04:30 PM   #11
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I know this is probably hyperbole, but if it's not, then its a very bad idea for very obvious reasons.
I'm not endorsing or scoffing at the idea, but salvaging one of those 2-piece (or is it actually 3-piece?) drop bars is the only way I know of to put grifters on road-bike-style drop bars, without having to resort to using a flat bar and bolting on those curved bar-ends... Because I know of no aftermarket sellers who offer those grifter-compatible drop bars.

This is how the grifter-equipped drop bars on the POS GMC Denali bike looks like:
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Old 08-28-10, 05:23 PM   #12
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HubBub adaptors go in the end of the handlebar and then they take the grip shifter..

most of the Gripshift is for 7/8" tube ,'mountain bike'.
some German companies get drop bars bent out of 22.2/7/8" tubes

then the above 3 piece kit works fine ,

German frame-builders do that to use Rohloff shifters in Road bikes ..

they dont fit on a 22.5 tube 22.22mm maybe certainly not on a 23mm bar ..


I have Trekking bars on my Rohloff hub bike ..

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Old 08-28-10, 05:31 PM   #13
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I've seen grip shifters on drop bars before... Those are used on the piece-of-crap Walmart "GMC Denali" road bikes.
it was also done on several pro level bikes. i believe it was the late 80 or early 90s. they used a front down tube and a rear grip shift on the end of the drops (a la bar end)

from the sram site:

1988
In January, at the Long Beach Show, SRAM debuts its first product, the Grip Shift® DB road bike twist shifter. The DB debuted shifting a SH-TY-20 across a 10-speed free-wheel. In April, the CAT-1 was introduced for tribars and road bars.
Bob Mionske places fourth, riding the DB/CAT-1 in the road race at the Seoul Olympics. Scott Molina wins the Ironman Triathlon using DB/CAT-1. Sachs' first MTB components, called the Rival ATB groupset, are introduced. Grip Shift® equipped rider wins the Race Across America. Kenny Souza wins the world biathlon championships with CAT-1.

1989
SRAM introduces the CX road shifter. Cannondale specs the CX shifter on mountain bikes. Grip Shift equipped racers dominate U.S. Criterium events using the CX shifter.
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Old 08-28-10, 05:38 PM   #14
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proof

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Old 08-28-10, 05:45 PM   #15
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Bike Friday also has some options for 22.2mm bars: http://bikefriday.com/node/1660?question=1710

I use the STI bars on my setup, and they closely reproduce the feeling of riding-on-the-hoods. The photo below is an early picture of the setup. It's good if you don't spend time in the drops, but tend to ride the hoods and the flats---the saddle-handlebar angle on my bike is such that the drops were never of much use (already fairly aggressive).
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Old 08-28-10, 05:46 PM   #16
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that's an awesome ride, thirdgenbird!
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