Show Your Vintage MTB Drop Bar Conversions
#2626
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My 1989-90ish Rocky Mountain Stratos, courtesy of our very own Sixty Fiver (thank you sir!). I'm working on making this my primary commuter bike and I'm not at all done, but it's so light and responsive (and surprisingly smooth) like this that I almost hate to add my lights, rack, and heavy bag.



And no, I'm not leaving the steerer tube like that.
And no, I'm not leaving the steerer tube like that.

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#2627
Senior Member
The fit is pretty good for me (I'm about 5'9"), but I have to use a pretty upright stem to get the bars close to level with the saddle, which is about as far as I can comfortably lean over. I modified an existing fender stay to mount to the brake bosses. It works for now, but I'm going to have to alter it soon to improve it. There's a bit too much in-built stress the way I have it now.
#2629
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Here's a crazy idea for folks looking for get a more "road-like" head tube angle out of their mtbs. It works best with sloping top tube frames but you can do it with level top tubes as well.
Basically you take a suspension fork and remove the guts from it and compress it all the way. this creates a fork that is shorter than your standard fork, which creates a sharper effective top tube angle. it also will shorten the wheel base a tiny bit and also increase the seat tube angle.. all characteristics of road bikes. With a sloping top tube bike, you can almost make the top tube level.
I haven't tried this out on my drop bar conversion bikes, but i have done it on my polo bike and it definitely changes the way it rides. I haven't figured out a way to keep the fork compressed without using zip ties, but once i figure out a clean way to do it, i'd like to experiment a bit and see how it feels
Basically you take a suspension fork and remove the guts from it and compress it all the way. this creates a fork that is shorter than your standard fork, which creates a sharper effective top tube angle. it also will shorten the wheel base a tiny bit and also increase the seat tube angle.. all characteristics of road bikes. With a sloping top tube bike, you can almost make the top tube level.
I haven't tried this out on my drop bar conversion bikes, but i have done it on my polo bike and it definitely changes the way it rides. I haven't figured out a way to keep the fork compressed without using zip ties, but once i figure out a clean way to do it, i'd like to experiment a bit and see how it feels
#2630
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Couldn't you achieve the same result in a better fashion by putting a pre-suspension (smaller axle to crown) fork on a suspension-corrected frame?
#2631
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Here's a crazy idea for folks looking for get a more "road-like" head tube angle out of their mtbs. It works best with sloping top tube frames but you can do it with level top tubes as well.
Basically you take a suspension fork and remove the guts from it and compress it all the way. this creates a fork that is shorter than your standard fork, which creates a sharper effective top tube angle. it also will shorten the wheel base a tiny bit and also increase the seat tube angle.. all characteristics of road bikes. With a sloping top tube bike, you can almost make the top tube level.
I haven't tried this out on my drop bar conversion bikes, but i have done it on my polo bike and it definitely changes the way it rides. I haven't figured out a way to keep the fork compressed without using zip ties, but once i figure out a clean way to do it, i'd like to experiment a bit and see how it feels
Basically you take a suspension fork and remove the guts from it and compress it all the way. this creates a fork that is shorter than your standard fork, which creates a sharper effective top tube angle. it also will shorten the wheel base a tiny bit and also increase the seat tube angle.. all characteristics of road bikes. With a sloping top tube bike, you can almost make the top tube level.
I haven't tried this out on my drop bar conversion bikes, but i have done it on my polo bike and it definitely changes the way it rides. I haven't figured out a way to keep the fork compressed without using zip ties, but once i figure out a clean way to do it, i'd like to experiment a bit and see how it feels
#2632
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You could also just measure your axle to crown on whatever you have and seek a fork that is shorter. You only need about 10mm shorter fork to steepen the angles by about half a degree as a very rough estimate.
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#2633
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it probably depends on the fork but when fully compressed with all the innards removed, a judy rock shox fork is even shorter than any rigid fork i have by at least a few cm
#2634
Jack of all trades
One option would be to replace the springs (if it has them) with the highest rating. That way you only get compression when you have a very heavy rider, or, no compression at all with someone weighing between 150-175lbs.
#2637
Senior Member
I think the 26" Surly LHT fork is pretty short. In fact I'm kind of wishing I had used one of those instead of the Surly fork I chose. I may replace it before I cut the steerer tube.
#2639
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The fit is pretty good for me (I'm about 5'9"), but I have to use a pretty upright stem to get the bars close to level with the saddle, which is about as far as I can comfortably lean over. I modified an existing fender stay to mount to the brake bosses. It works for now, but I'm going to have to alter it soon to improve it. There's a bit too much in-built stress the way I have it now.
#2640
Senior Member
Edit: Just found your Rockadile. Very nice! Was 94 the year they switched to double butted tubing? I think mine's just straight-gauge chromoly. So very heavy!
Last edited by Lamplight; 12-23-13 at 02:58 PM.
#2641
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Did you post your Rockadile in this thread? My current commuter is a 1993 Rockadile I bought new. Heavy but pretty much the toughest bike I've ever owned. If this Rocky Mountain works out as my new commuter, the Rockadile will go back to being my heavy cargo/grocery bike.
Edit: Just found your Rockadile. Very nice! Was 94 the year they switched to double butted tubing? I think mine's just straight-gauge chromoly. So very heavy!
Edit: Just found your Rockadile. Very nice! Was 94 the year they switched to double butted tubing? I think mine's just straight-gauge chromoly. So very heavy!
#2642
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I get the idea of trying to gut and freeze an old suspension fork, but I'd worry about long-term durability and I reckon it'd look a mess.
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at 38cm that is pretty close to a fully compressed suspension fork. and more attractive. but old sus forks are probably easier/cheaper to come by
#2644
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BITD, I had a chromoly Kona full-rigid that i'd converted to drop-bars, xd 48/36/26 triple, barcons, etc. Rack, bags, blah blah blah.
I loved the bike, but it's reverted to mountain bike duty, and has been for a few years.
The drop-bar mtb bug has bitten me again, and I got a cool frame for it. I'm still up in the air if I want to go with drop bars or northroad-style upright bars. Thing is, the Kalloy 115d dirt-drop style stem I got won't accommodate my Nitto bars. The clamp area, which looks basically narrow and normal-ish, will not allow the bends of the dropbar to pass thru. NBD, as I can just run a different stem, but that'd necessitate my getting some other variety of cable hanger, etc... So, yeah, I'm frustrated. the stem is but a small hiccup, but the fact that it frustrates me so indicates that I've lost my way with this build.
I guess I need some spiritual guidance/advice. I'm committed to building an all-rounder with some serious touring/bike-camping flavor-- that'll happen regardless, and I'll probably end up spending about the same amount of money regardless of cockpit set-up... I just guess I want/need someone to re-sell me on the drop-bar mtb thing. For every inspiring pic I see on this thread, I see about 3 that make me wanna go upright....
I loved the bike, but it's reverted to mountain bike duty, and has been for a few years.
The drop-bar mtb bug has bitten me again, and I got a cool frame for it. I'm still up in the air if I want to go with drop bars or northroad-style upright bars. Thing is, the Kalloy 115d dirt-drop style stem I got won't accommodate my Nitto bars. The clamp area, which looks basically narrow and normal-ish, will not allow the bends of the dropbar to pass thru. NBD, as I can just run a different stem, but that'd necessitate my getting some other variety of cable hanger, etc... So, yeah, I'm frustrated. the stem is but a small hiccup, but the fact that it frustrates me so indicates that I've lost my way with this build.
I guess I need some spiritual guidance/advice. I'm committed to building an all-rounder with some serious touring/bike-camping flavor-- that'll happen regardless, and I'll probably end up spending about the same amount of money regardless of cockpit set-up... I just guess I want/need someone to re-sell me on the drop-bar mtb thing. For every inspiring pic I see on this thread, I see about 3 that make me wanna go upright....
#2645
Thrifty Bill
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Its easy enough to go with a headset spacer cable stop. They can be purchased for less than $5. I like the stems Oddjob has picked up from Amazon. They make bar changes super easy.
All the bikes I own, the one that gets ridden is the Cimmaron drop bar conversion. I have short legs and a long torso, so the longish top tube is not a problem for me.
I usually add small misc parts like this one to larger orders to avoid shipping charges. Lots of versions of this style of stop.
https://www.niagaracycle.com/categori...justable-steel
All the bikes I own, the one that gets ridden is the Cimmaron drop bar conversion. I have short legs and a long torso, so the longish top tube is not a problem for me.
I usually add small misc parts like this one to larger orders to avoid shipping charges. Lots of versions of this style of stop.
https://www.niagaracycle.com/categori...justable-steel
#2649
Bicycle Repair Man !!!
My 1989-90ish Rocky Mountain Stratos, courtesy of our very own Sixty Fiver (thank you sir!). I'm working on making this my primary commuter bike and I'm not at all done, but it's so light and responsive (and surprisingly smooth) like this that I almost hate to add my lights, rack, and heavy bag.



And no, I'm not leaving the steerer tube like that.
And no, I'm not leaving the steerer tube like that.


Last edited by Sixty Fiver; 12-25-13 at 11:58 PM.
#2650
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BITD, I had a chromoly Kona full-rigid that i'd converted to drop-bars, xd 48/36/26 triple, barcons, etc. Rack, bags, blah blah blah.
I loved the bike, but it's reverted to mountain bike duty, and has been for a few years.
The drop-bar mtb bug has bitten me again, and I got a cool frame for it. I'm still up in the air if I want to go with drop bars or northroad-style upright bars. Thing is, the Kalloy 115d dirt-drop style stem I got won't accommodate my Nitto bars. The clamp area, which looks basically narrow and normal-ish, will not allow the bends of the dropbar to pass thru. NBD, as I can just run a different stem, but that'd necessitate my getting some other variety of cable hanger, etc... So, yeah, I'm frustrated. the stem is but a small hiccup, but the fact that it frustrates me so indicates that I've lost my way with this build.
I guess I need some spiritual guidance/advice. I'm committed to building an all-rounder with some serious touring/bike-camping flavor-- that'll happen regardless, and I'll probably end up spending about the same amount of money regardless of cockpit set-up... I just guess I want/need someone to re-sell me on the drop-bar mtb thing. For every inspiring pic I see on this thread, I see about 3 that make me wanna go upright....
I loved the bike, but it's reverted to mountain bike duty, and has been for a few years.
The drop-bar mtb bug has bitten me again, and I got a cool frame for it. I'm still up in the air if I want to go with drop bars or northroad-style upright bars. Thing is, the Kalloy 115d dirt-drop style stem I got won't accommodate my Nitto bars. The clamp area, which looks basically narrow and normal-ish, will not allow the bends of the dropbar to pass thru. NBD, as I can just run a different stem, but that'd necessitate my getting some other variety of cable hanger, etc... So, yeah, I'm frustrated. the stem is but a small hiccup, but the fact that it frustrates me so indicates that I've lost my way with this build.
I guess I need some spiritual guidance/advice. I'm committed to building an all-rounder with some serious touring/bike-camping flavor-- that'll happen regardless, and I'll probably end up spending about the same amount of money regardless of cockpit set-up... I just guess I want/need someone to re-sell me on the drop-bar mtb thing. For every inspiring pic I see on this thread, I see about 3 that make me wanna go upright....
