Show Your Vintage MTB Drop Bar Conversions
#7151
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#7152
Full Member
Update on this bike: added Deore 1x 32t crankset on a Hollowtech BB. Deore M6000-GS rear derailleur. 11x42 cassette.
I had to do some judicious filing to the DiaCompe Silver shifter to get the range needed to cover the 10 spd dynasys-whatchamacallit...
This derailleur shifts beautifully, though no doubt everything has gotten uglier since 1996.... and I like how light this bike is!

Before finding an 8-speed rear wheel in my stash which could take a 10-speed cassette...

Not so pretty, but really only needed to remove a few mm.

Glorious friction shifting over 10 cogs!

I'm old enough that this 11-42 cassette just looks so, so silly to me. But of course there are 50 tooth cogs out there!
I had to do some judicious filing to the DiaCompe Silver shifter to get the range needed to cover the 10 spd dynasys-whatchamacallit...
This derailleur shifts beautifully, though no doubt everything has gotten uglier since 1996.... and I like how light this bike is!

Before finding an 8-speed rear wheel in my stash which could take a 10-speed cassette...

Not so pretty, but really only needed to remove a few mm.

Glorious friction shifting over 10 cogs!

I'm old enough that this 11-42 cassette just looks so, so silly to me. But of course there are 50 tooth cogs out there!
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#7153
Full Member
Whoops I see now that this is Wald basket-- what size Dark Realm bag do you have in there?
#7154
Junior Member
Loving this thread! I have an mid-80s Kuwahara that I'm fixing up. It's in pretty rough shape, and I'm just working on getting it ridable first, but eventually want to do a drop bar conversion.
#7155
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Are partial builds acceptable? This has been slowly coming together over the past few weeks. I've got front and rear derailleurs that'll work for the time being, as well as brake levers. Still need cables, a saddle, pedals, tubes and tires, and a new bottom bracket. The Super Maxy's non-drive arm grazes the frame — I'm not exactly sure what spindle length I need.

#7156
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[QUOTE=k2blt;22150867]

Looks purpose-built and so fine by me. I need something like this.

Looks purpose-built and so fine by me. I need something like this.
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#7157
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Do you know the seatpost clamp size of your Kona? I just got a same era Explosif and the one on there was completely wrong. I measured 29.5mm OD on the seat tube itself and it seems not many companies still make it in this size.
#7158
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#7159
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Just finished installing a Carver 26 inch rigid fork to my 2001 Marin Hawk Hill, replacing the old insync 327 fork. First time I did a major upgrade to a bike. I had already replaced to handlebars from the original mountain bars to an alt bar with about 40 degree of sweep. Running Schwalbe Marathons 26x1.5. I’m going to ride it like this for a remainder of the summer and fall a d college more parts for the drops. Newbie here so I can’t post pictures yet.
#7161
Senior Member
Surfing CL the other evening, I came across an ad for, "Free Trek mtb, needs 6'+ rider, painted, new tires". No pictures or other details. I was the first to respond, so I ended up scoring this free bike:
... dang, I lost my "before picture." Anyway, picture this bike with (painted!) riser bars and (painted!) stem to go along with the (painted!) headset and (painted!) front badge. And cheap Wal Mart tires:

Based on the parts that look original and comparing it to the catalogs, it looks like an '89 Trek 800, their bottom of the line mtb, in the 22" sizeway. Aside from the, er, enthusiastic painting, the previous owner had put on decent wheels and new CR720 brakes. I swapped out the cockpit, pedals, crank, and tires, and was ready to roll:

I would have looked down on this humble bike when I started mountain biking a few years after it was new, but it's a nice riding bike that will make a great bike for riding around town. I couldn't get the (painted!) headset to stay in adjustment, so I just swapped that out with something from parts bin. I'm not sure the drop bars will stay--I think it might be overall more useful and comfortable with Jones bars or something similar--but I love the way it looks now. It's fun to get all John Tomaccy and slide around corners on dirt trails in our neighborhood parks.
... dang, I lost my "before picture." Anyway, picture this bike with (painted!) riser bars and (painted!) stem to go along with the (painted!) headset and (painted!) front badge. And cheap Wal Mart tires:

Based on the parts that look original and comparing it to the catalogs, it looks like an '89 Trek 800, their bottom of the line mtb, in the 22" sizeway. Aside from the, er, enthusiastic painting, the previous owner had put on decent wheels and new CR720 brakes. I swapped out the cockpit, pedals, crank, and tires, and was ready to roll:

I would have looked down on this humble bike when I started mountain biking a few years after it was new, but it's a nice riding bike that will make a great bike for riding around town. I couldn't get the (painted!) headset to stay in adjustment, so I just swapped that out with something from parts bin. I'm not sure the drop bars will stay--I think it might be overall more useful and comfortable with Jones bars or something similar--but I love the way it looks now. It's fun to get all John Tomaccy and slide around corners on dirt trails in our neighborhood parks.
Last edited by seat_boy; 08-28-21 at 03:05 AM.
#7162
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Raleigh amazon gravel bike conversion
Fellow converts, please see attached for your leisure. Took some time to source parts and aspects of the frame needed restoring but overall I'm pleased with the result.
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#7164
Junior Member
Here's my second dropbar mtb build - 1993 Trek 950. Almost all original aside from the conversion. Great handling and fit using a threaded-to-threadless stem converter. Using the MicroShift 3x7 brifters everything works well, though the FD indexing is a bit off due to the mismatch of road-mtb pull ratios. I have a barrel adjuster to make this manageable, but needing to stop before a big climb and make adjustments to use the small ring is a bit annoying. Any suggestions or tips aside from replacing the original Deore LX FD with a touring FD?

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#7165
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Here's my second dropbar mtb build - 1993 Trek 950. Almost all original aside from the conversion. Great handling and fit using a threaded-to-threadless stem converter. Using the MicroShift 3x7 brifters everything works well, though the FD indexing is a bit off due to the mismatch of road-mtb pull ratios. I have a barrel adjuster to make this manageable, but needing to stop before a big climb and make adjustments to use the small ring is a bit annoying. Any suggestions or tips aside from replacing the original Deore LX FD with a touring FD?


Nice bike. Mine is now a dedicated touring bike and it's a wonderful ride. Doing a 55 miler on it today..shakedown ride for an upcoming tour.
Last edited by fishboat; 08-31-21 at 06:14 AM.
#7166
Full Member
Just finished this build. Picked up this 80s Peugeot Orient Express for $10 on FB Marketplace. Did an acid bath to remove the rust, everything new except the wheels and cranks.







#7171
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#7172
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Here's an article I reference occasionally for inter-brand compatability. https://www.bikeradar.com/advice/buy...r-derailleurs/
There are cross brand combos that work (google Shimergo to experience the dark art of combining Shimano and Campagnolo, for example) and there are also cable pull ratio tables where you can compare the cable pull of the shifter to the cable pull ratio of the derailleur. You can even run combos of different speed derailleurs and shifters (some 10 speed shimano with some 9 speed shimano MTB, see the article above)
Of course, friction shifting opens up a whole new world. As long as the friction shifter can shift the full range, you can use it. I've seen a few folks here using friction with 10 speed cassettes and derailleurs and even modifying friction shifters to open up the range to accommodate 10 speeds or more.
This is probably more than enough for this thread. Do some googling and once you have them, post more specific questions about your specific combo in a new thread here or in the mechanics forum so that your question doesn't get buried.
Last edited by tricky; 08-31-21 at 10:13 AM.
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#7173
Newbie
Update on this bike: added Deore 1x 32t crankset on a Hollowtech BB. Deore M6000-GS rear derailleur. 11x42 cassette.
I had to do some judicious filing to the DiaCompe Silver shifter to get the range needed to cover the 10 spd dynasys-whatchamacallit...
This derailleur shifts beautifully, though no doubt everything has gotten uglier since 1996.... and I like how light this bike is!
!
I had to do some judicious filing to the DiaCompe Silver shifter to get the range needed to cover the 10 spd dynasys-whatchamacallit...
This derailleur shifts beautifully, though no doubt everything has gotten uglier since 1996.... and I like how light this bike is!
!
#7174
Full Member
Cheap imitations of TRP levers--- about $20 on the big auction site... I was trying to be cheap as I'd never tried the "drop-bar-mtb" thing before. But it's quickly becoming a favorite bike, whether for bombing around city streets careless of potholes, or ripping past guys riding dual-suspension monsters on the local (very easy) single track...
The quality of these levers seems pretty flimsy--- the plastic and rubber of the hoods feels cheap, and the aluminum of the levers has lots of rough spots from the mold-- but so far they've worked fine. Search for "road bike brake levers coffee" and you'll find what I bought. I might upgrade these someday, but like I said, so far they are giving no cause for complaint other than feeling like what they are: cheap brake levers.
Bike is sitting next to me as I type--- just rode it home from work.
The quality of these levers seems pretty flimsy--- the plastic and rubber of the hoods feels cheap, and the aluminum of the levers has lots of rough spots from the mold-- but so far they've worked fine. Search for "road bike brake levers coffee" and you'll find what I bought. I might upgrade these someday, but like I said, so far they are giving no cause for complaint other than feeling like what they are: cheap brake levers.
Bike is sitting next to me as I type--- just rode it home from work.
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#7175
Newbie
Cheap imitations of TRP levers--- about $20 on the big auction site... I was trying to be cheap as I'd never tried the "drop-bar-mtb" thing before. But it's quickly becoming a favorite bike, whether for bombing around city streets careless of potholes, or ripping past guys riding dual-suspension monsters on the local (very easy) single track...
The quality of these levers seems pretty flimsy--- the plastic and rubber of the hoods feels cheap, and the aluminum of the levers has lots of rough spots from the mold-- but so far they've worked fine. Search for "road bike brake levers coffee" and you'll find what I bought. I might upgrade these someday, but like I said, so far they are giving no cause for complaint other than feeling like what they are: cheap brake levers.
Bike is sitting next to me as I type--- just rode it home from work.
The quality of these levers seems pretty flimsy--- the plastic and rubber of the hoods feels cheap, and the aluminum of the levers has lots of rough spots from the mold-- but so far they've worked fine. Search for "road bike brake levers coffee" and you'll find what I bought. I might upgrade these someday, but like I said, so far they are giving no cause for complaint other than feeling like what they are: cheap brake levers.
Bike is sitting next to me as I type--- just rode it home from work.