Show your Trek
07-12-20, 04:01 PM
#2301
Senior Member
Can you all give me a hand figuring something out.
So Im trying to figure out what bottom bracket Im needing for my 1980 412 trek. I took apart the bottom bracket to clean it since the bearing cages were destroyed and can't for the life of me remember which one I was using. Im wanting to get a sealed bottom bracket, for now I'll be using the original SILSTAR 40-52 double crankset, I have a 6 speed Shimano freewheel in the rear. I tried looking through older threads but I have been all over the place trying to figure out what size I will be needing.
Here is the SILSTAR 40-52 crankset I'm using
So maybe you all can help. Right now I have a Bottom bracket marked
CRMO3Z
MTBS511
118
33 52 33
And the other bottom bracket I have.
3NB
82-A
Overall length is 120
32 52 36
So Im trying to figure out what bottom bracket Im needing for my 1980 412 trek. I took apart the bottom bracket to clean it since the bearing cages were destroyed and can't for the life of me remember which one I was using. Im wanting to get a sealed bottom bracket, for now I'll be using the original SILSTAR 40-52 double crankset, I have a 6 speed Shimano freewheel in the rear. I tried looking through older threads but I have been all over the place trying to figure out what size I will be needing.
Here is the SILSTAR 40-52 crankset I'm using
So maybe you all can help. Right now I have a Bottom bracket marked
CRMO3Z
MTBS511
118
33 52 33
And the other bottom bracket I have.
3NB
82-A
Overall length is 120
32 52 36
07-12-20, 04:57 PM
#2302
Senior Member
Join Date: Jan 2004
Location: Madison, WI USA
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Try to remember - when you removed it, did you remove BOLTS or NUTS?
07-12-20, 05:28 PM
#2303
Extraordinary Magnitude
Join Date: Aug 2009
Location: Waukesha WI
Posts: 13,644
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
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I have a 730- it was built as a 736- I was hoping my TX-700 was going to ride like the 730- but longer. The TX700 is definitely more stiff-especially in the front end.
Oddly enough, my most aggressive bike is my 86 400 Elance- if that had a stiffer fork...
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Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
07-12-20, 08:59 PM
#2304
Full Member
Join Date: Mar 2015
Location: The Lou
Posts: 340
Bikes: 82 Trek 710, 90 Trek 750, 86 Vitus, Nishiki Cervino, 1989 Bianchi CdI, 2 Nashbars, an Italian Steel MTB, Sears Spaceliner, and a 74 Schwinn Speedster. I also manage a fleet of Volcanic Patrol bikes, 83 of them.
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Very nice!
Looks like yours has these too but where they factory options? Also my chain stays might be longer.
Last edited by Jmpierce; 07-12-20 at 09:05 PM.
07-13-20, 08:23 AM
#2305
smelling the roses
Join Date: Nov 2010
Location: Tixkokob, Yucatán, México
Posts: 15,320
Bikes: 79 Trek 930, 80 Trek 414, 84 Schwinn Letour Luxe (coupled), 92 Schwinn Paramount PDG 5
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Can you all give me a hand figuring something out.
So Im trying to figure out what bottom bracket Im needing for my 1980 412 trek. I took apart the bottom bracket to clean it since the bearing cages were destroyed and can't for the life of me remember which one I was using. Im wanting to get a sealed bottom bracket, for now I'll be using the original SILSTAR 40-52 double crankset, I have a 6 speed Shimano freewheel in the rear. I tried looking through older threads but I have been all over the place trying to figure out what size I will be needing.
Here is the SILSTAR 40-52 crankset I'm using
So maybe you all can help. Right now I have a Bottom bracket marked
CRMO3Z
MTBS511
118
33 52 33
And the other bottom bracket I have.
3NB
82-A
Overall length is 120
32 52 36
So Im trying to figure out what bottom bracket Im needing for my 1980 412 trek. I took apart the bottom bracket to clean it since the bearing cages were destroyed and can't for the life of me remember which one I was using. Im wanting to get a sealed bottom bracket, for now I'll be using the original SILSTAR 40-52 double crankset, I have a 6 speed Shimano freewheel in the rear. I tried looking through older threads but I have been all over the place trying to figure out what size I will be needing.
Here is the SILSTAR 40-52 crankset I'm using
So maybe you all can help. Right now I have a Bottom bracket marked
CRMO3Z
MTBS511
118
33 52 33
And the other bottom bracket I have.
3NB
82-A
Overall length is 120
32 52 36
Edit: The OEM crank is nutted
Last edited by seedsbelize; 07-13-20 at 03:25 PM.
07-13-20, 09:25 AM
#2306
missing in action
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Do/did you have either one of the pre 81 730/530 bikes?
I have a 730- it was built as a 736- I was hoping my TX-700 was going to ride like the 730- but longer. The TX700 is definitely more stiff-especially in the front end.
Oddly enough, my most aggressive bike is my 86 400 Elance- if that had a stiffer fork...
I have a 730- it was built as a 736- I was hoping my TX-700 was going to ride like the 730- but longer. The TX700 is definitely more stiff-especially in the front end.
Oddly enough, my most aggressive bike is my 86 400 Elance- if that had a stiffer fork...
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07-13-20, 09:31 AM
#2307
missing in action
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Nice 82 750! I have an 82 710. Does anyone know the differences between the two? Besides the obvious of course. I altered mine after it was stolen and the top tube cable guides were crushed. I replaced the guide braze ons, added the second water bottle braze on and the down tube shifter braze ons.
Looks like yours has these too but where they factory options? Also my chain stays might be longer.
Looks like yours has these too but where they factory options? Also my chain stays might be longer.
07-19-20, 10:30 AM
#2308
Senior Member
Join Date: Jan 2019
Location: Toledo Ohio
Posts: 1,493
Bikes: 1964 Huffy Sportsman, 1972 Fuji Newest, 1973 Schwinn Super Sport (3), 1982 Trek 412, 1983 Trek 700, 1989 Miyata 1000LT, 1991 Bianchi Boardwalk, plus others
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1983 Trek 700
I posted this before, but am now pretty satisfied with the setup. The Trek 700 was a 1983 only model. It was in kind of a gray area between sport with the full 531 tubing and sport/touring with the slightly relaxed geometry. Another poster purchased one at about the same time as I did. His build leaned more toward the sport side while mine is more to the sport touring. He is probably younger than I am. Plenty of touch up paint was used on this bike, so not pristine, and a bit dirty.
1983 Trek 700
531 tubing throughout
Superbe components
Being an older guy, the 52/42 was a bit much for me, and I live in the flatlands, so I went with a 45/42 half step setup with a 14-30 freewheel in back. It gets me fairly low gearing, and the half steps come in at about 1mph difference which is kinda nice. Might as well have more useful gears and I didn't want to part with the pretty crank unless a nice Sugino Mighty Tour 110bcd popped up. Rear derailleur was missing at purchase. The medium cage Suntour VX-s works nicely with things.
modified brake lever for mirror
The Panaracer Gravel Kings in 32mm ride real nice. They are plump on the 20mm rims and at 60psi front and 65 rear I like the ride. Perhaps a Technomic taller stem in the future, but as I have a couple of more laid back bikes, this one is for a bit more aggressive riding. Not aggressive like you young guys, but for me, so perhaps the stem will stay. The bars I added are the Nitto Olympiad with more of a flat top area more parallel to the drops too. The frame feel to this non expert is lively/sporty but still stable. It is a fun ride and a bit of a rare 1 year model that I just stumbled upon a couple years ago.
1983 Trek 700
531 tubing throughout
Superbe components
Being an older guy, the 52/42 was a bit much for me, and I live in the flatlands, so I went with a 45/42 half step setup with a 14-30 freewheel in back. It gets me fairly low gearing, and the half steps come in at about 1mph difference which is kinda nice. Might as well have more useful gears and I didn't want to part with the pretty crank unless a nice Sugino Mighty Tour 110bcd popped up. Rear derailleur was missing at purchase. The medium cage Suntour VX-s works nicely with things.
modified brake lever for mirror
The Panaracer Gravel Kings in 32mm ride real nice. They are plump on the 20mm rims and at 60psi front and 65 rear I like the ride. Perhaps a Technomic taller stem in the future, but as I have a couple of more laid back bikes, this one is for a bit more aggressive riding. Not aggressive like you young guys, but for me, so perhaps the stem will stay. The bars I added are the Nitto Olympiad with more of a flat top area more parallel to the drops too. The frame feel to this non expert is lively/sporty but still stable. It is a fun ride and a bit of a rare 1 year model that I just stumbled upon a couple years ago.
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08-02-20, 09:46 AM
#2309
Newbie
Join Date: Nov 2016
Location: North East Ohio
Posts: 56
Bikes: 1977 Trek Tx700, 1978 Trek 510, 1969 Raleigh Competition, 1985 Univega Viva Sport, 1991 Bridgestone RB-1, 1986 Schwinn Voyageur, 1987 Bianchi Limited, 1986 Trek 400 Elance, 2019 Surly Karate Monkey
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The best pic I have of this 86 400 Elance. All original except the leather saddle.
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09-09-20, 11:29 AM
#2310
Newbie
‘85 560
‘90 750 Multitrack
Last edited by esc77; 09-09-20 at 11:38 PM.
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09-09-20, 02:40 PM
#2311
Senior Member
Join Date: May 2011
Location: Seattle WA
Posts: 2,841
Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
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Swan song, sold this bike last week, I liked the fit and ride but it duplicated a bike I already have and my storage in an apartment is finite. I am sure I will miss it but the buyer is going to ride it and use it and was happy to find it and with me it would probably languish in my spare bedroom and I think I got more for it in this market than I would have a year ago.
1987 Trek 520 Cirrus
1987 Trek 520 Cirrus
09-09-20, 04:08 PM
#2312
Senior Member
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Swan song, sold this bike last week, I liked the fit and ride but it duplicated a bike I already have and my storage in an apartment is finite. I am sure I will miss it but the buyer is going to ride it and use it and was happy to find it and with me it would probably languish in my spare bedroom and I think I got more for it in this market than I would have a year ago.
1987 Trek 520 Cirrus
1987 Trek 520 Cirrus
09-09-20, 06:00 PM
#2313
Senior Member
Join Date: May 2011
Location: Seattle WA
Posts: 2,841
Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
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polymorphself its also a 1987 Touring bike a Nishiki Cresta GT that I have a lot of time effort $$ and tears invested in so I released the Trek.
09-09-20, 07:55 PM
#2314
Senior Member
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polymorphself its also a 1987 Touring bike a Nishiki Cresta GT that I have a lot of time effort $$ and tears invested in so I released the Trek.
09-09-20, 08:44 PM
#2315
Senior Member
Join Date: Jul 2017
Location: Washington, D.C area
Posts: 71
Bikes: Miyata 912|Raleigh Super Course & MK II|Trek 830(Original Owner)/610/520/510/420/310|Jamis Coda 2011|Fuji Monterrey & Tourer|Shogun CroMo 500 & 600|1987 Bianchi Sport SX & Ltd|Mossberg VM-1, 1980 Mercian Olympic| Takara Olympic| Bridgestone RB-2|
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Here is my Trek 420. I had put this for sale , only later to retract it. I love the colors. When I got it, it had not dents. All dents are from my basement clogged from the pile of bikes. I am thinning the herd now - already sold 4 bikes. I still have more.
09-09-20, 09:01 PM
#2317
Senior Member
Join Date: Jul 2017
Location: Washington, D.C area
Posts: 71
Bikes: Miyata 912|Raleigh Super Course & MK II|Trek 830(Original Owner)/610/520/510/420/310|Jamis Coda 2011|Fuji Monterrey & Tourer|Shogun CroMo 500 & 600|1987 Bianchi Sport SX & Ltd|Mossberg VM-1, 1980 Mercian Olympic| Takara Olympic| Bridgestone RB-2|
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09-09-20, 11:13 PM
#2319
Senior Member
Join Date: May 2011
Location: Seattle WA
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Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
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Nice. Make it look like this: https://www.pedalroom.com/p/new-hotness-4107_11.jpg
12-30-20, 09:32 PM
#2320
Senior Member
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Bikes: Trek Domane SLR 7 AXS, Trek CheckPoint SL7 AXS, Trek Emonda ALR AXS, Trek FX 5 Sport
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I rode this for a lot of years and a lot of miles. I took it down to the frame replacing everything on it, including the fork. Reduced the weight by 7 or 8 lbs, ending up around 21 lbs when it was all said and done. Not very pretty as some of these bikes, but it worked for me and I ended up selling to a kid that needed some transportation after I got a new bike for commuting.
2003 Trek Multitrak 7300
2003 Trek Multitrak 7300
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12-31-20, 12:37 AM
#2321
Master Parts Rearranger
Join Date: Mar 2015
Location: Portlandia's Kuiper Belt, OR
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Bikes: 1982 Trek 720 - 1985 Trek 620 - 1984 Trek 620 - 1980 Trek 510 - Other luminaries past and present
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"For the record," my '85 620 in the 25.5" size. It now sports an 11-28T cassette out back (along with a new chain that is long enough) instead of the 11-23T I had to use with the then-current-length chain. Gorgeous blue and a superb ride quality, without giving up any speed in any situation. An accidental Grail Bike for me (I bought the frame, fork, headset, and canti brakes) and I couldn't be happier. Now if it would only stop raining!
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01-11-21, 07:44 AM
#2323
Port
Join Date: Jan 2008
Location: Boston
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@Hproduguidon where is that shot? Beautiful!
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02-02-21, 07:20 PM
#2324
Senior Member
Picked this up from a pawn shop about 20 mins away. They had posted it up on offerup.
I have a 1980 412, I know this is basically the same frame but with mounts for cables and a water bottle.
It has 022 tubes, Suntour cyclone front derailleur, Suntour SL rear derailleur, SR Stem and bars, Silstar cranks but has a different non drive side crank arm.
27x1 1/4 wheel set, the front wheel is a crappy hub laced to a weinmann rim. Rear has a gyro master laced to not sure what rim as the sticker is gone.
I believe this is a 82.
serial looks to be M2E5490
I have a 1980 412, I know this is basically the same frame but with mounts for cables and a water bottle.
It has 022 tubes, Suntour cyclone front derailleur, Suntour SL rear derailleur, SR Stem and bars, Silstar cranks but has a different non drive side crank arm.
27x1 1/4 wheel set, the front wheel is a crappy hub laced to a weinmann rim. Rear has a gyro master laced to not sure what rim as the sticker is gone.
I believe this is a 82.
serial looks to be M2E5490
Last edited by jamesj; 07-21-22 at 04:05 PM.
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