Modernizing a Classic: 1984 Trek 760
#76
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The new fork will reduce the trail, and low trail is in fashion these days. 7mm is not going to change things that much! For reference, I adjusted the existing fork to increase the rake on my old Trek from 55mm to 70mm, decreasing the trail from 46mm to 31mm. The bike is still rideable with or without a handlebar bag, but rides better with one now.
You can play around with the geometry here:
Bicycle Trail Calculator | yojimg.net
I don't think you'll be able to tell the difference in "stiffness". You may not even tell the difference in handling. What makes you think a stiffer front end is a good thing anyway?
You can play around with the geometry here:
Bicycle Trail Calculator | yojimg.net
I don't think you'll be able to tell the difference in "stiffness". You may not even tell the difference in handling. What makes you think a stiffer front end is a good thing anyway?
I'm actually not messing with the fork. I'll keep the frameset together. I guess that's part of this experience!
I have another bike I can try to lighten up. This bike is about the wabi sabi I suppose, with a heaping dose of new stuff to it.
In sad news, I think I've managed to ruin the decals of the bike when I got the fluid film everywhere and had to wipe it off. Such sad. I hope this stuff does something. I probably sprayed a 100g from the bottle into the frame. I hope some of it drips and drains out and spreads everywhere it needs to go on its way out!
#77
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In sad news, I think I've managed to ruin the decals of the bike when I got the fluid film everywhere and had to wipe it off. Such sad. I hope this stuff does something. I probably sprayed a 100g from the bottle into the frame. I hope some of it drips and drains out and spreads everywhere it needs to go on its way out!
#78
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Should be ready to install the innicycle tomorrow. Why do these things always take soo much longer.... I need to wait till weds for my BB tool to come in because reasons. Will try to get a bunch of the cables done tomorrow with the crank on hand tight.
Do you folks think this frame will clear 30's?
As a side note, I'm debating getting a carbon fork for this bike. I'll use that if I'm in the mood to make things lighter and the innicycle can be run when i want to have the frameset as is. It's a bit of a tough call because I don't want to give up having clearance for 28's with some room to spare.
Additionally, my frame has the screws in the dropout to adjust the wheelbase etc. Is there any reason I can't take those out? I figure with them out completely the rear wheel will always go on perfectly if it goes all the way back.
Thoughts?
Do you folks think this frame will clear 30's?
As a side note, I'm debating getting a carbon fork for this bike. I'll use that if I'm in the mood to make things lighter and the innicycle can be run when i want to have the frameset as is. It's a bit of a tough call because I don't want to give up having clearance for 28's with some room to spare.
Additionally, my frame has the screws in the dropout to adjust the wheelbase etc. Is there any reason I can't take those out? I figure with them out completely the rear wheel will always go on perfectly if it goes all the way back.
Thoughts?
#79
Senior Member
Should be ready to install the innicycle tomorrow. Why do these things always take soo much longer.... I need to wait till weds for my BB tool to come in because reasons. Will try to get a bunch of the cables done tomorrow with the crank on hand tight.
Do you folks think this frame will clear 30's?
As a side note, I'm debating getting a carbon fork for this bike. I'll use that if I'm in the mood to make things lighter and the innicycle can be run when i want to have the frameset as is. It's a bit of a tough call because I don't want to give up having clearance for 28's with some room to spare.
Additionally, my frame has the screws in the dropout to adjust the wheelbase etc. Is there any reason I can't take those out? I figure with them out completely the rear wheel will always go on perfectly if it goes all the way back.
Thoughts?
Do you folks think this frame will clear 30's?
As a side note, I'm debating getting a carbon fork for this bike. I'll use that if I'm in the mood to make things lighter and the innicycle can be run when i want to have the frameset as is. It's a bit of a tough call because I don't want to give up having clearance for 28's with some room to spare.
Additionally, my frame has the screws in the dropout to adjust the wheelbase etc. Is there any reason I can't take those out? I figure with them out completely the rear wheel will always go on perfectly if it goes all the way back.
Thoughts?
2) What's your target weight? My Trek 770 was down to 18.5lb with Dura Ace 7800 and no carbon anywhere. Had I used a carbon bar, seatpost, saddle, etc 17.5 or less would have been very doable without resorting to a fork change. My current ride is about 19.5lb. I like riding it more and I'm faster on it than the Trek.
3) Rear Dropout Adjuster - Why & How
Last edited by upthywazzoo; 06-16-20 at 12:59 PM.
#80
Senior Member
Leave them in. While the dropouts are usually good there is no guarantee they are square to the stays. Further your use those to hold the wheel as far forward in the drop out as possible to reduce the wheelbase.
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1984 Cannondale ST
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1984 Cannondale ST
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1984 Trek 760
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#81
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1) You'll be more limited by the brake calipers for tire size than the frame itself.
2) What's your target weight? My Trek 770 was down to 18.5lb with Dura Ace 7800 and no carbon anywhere. Had I used a carbon bar, seatpost, saddle, etc 17.5 or less would have been very doable without resorting to a fork change. My current ride is about 19.5lb. I like riding it more and I'm faster on it than the Trek.
3) Rear Dropout Adjuster - Why & How
2) What's your target weight? My Trek 770 was down to 18.5lb with Dura Ace 7800 and no carbon anywhere. Had I used a carbon bar, seatpost, saddle, etc 17.5 or less would have been very doable without resorting to a fork change. My current ride is about 19.5lb. I like riding it more and I'm faster on it than the Trek.
3) Rear Dropout Adjuster - Why & How
Ghost is getting 105-R7000 and trek's getting 105-5800. I do have some pretty lightweight wheels that an awesome forum member build. Psimet2001 is good people. I think my wheels came in at like 1450 grams or so without skewers/tape. Pretty stoked!
I don't hate the idea of having the wheelbase on the longer side for this. It's getting modern parts and I'd rather things sit squarely. Maybe I'll test it with stuff removed and then see what's going on. I'll replace if things look off?
#82
Senior Member
531P is great for comfort and should have no difficulty handling your weight.
Wider tires yes. Get the comfortable ones. Try Rene Herse tires. Standard casing RH tires will do more than a carbon fork and the Extralights you will need time to get used to. They do not ride exactly like tubulars but that is the only plausible comparison. No reason whatsoever the front cannot use a wider tire than the rear. Unless there is a crown clearance problem at top. Keep the psi down. Latex tubes.
For comfort why not a custom steel fork? The 760 has 73.5 head angle, you could easily use 60mm of rake, maybe even 65. Have the builder do it with Kaisei Toei Special blades and now you have classic comfort.
Wider tires yes. Get the comfortable ones. Try Rene Herse tires. Standard casing RH tires will do more than a carbon fork and the Extralights you will need time to get used to. They do not ride exactly like tubulars but that is the only plausible comparison. No reason whatsoever the front cannot use a wider tire than the rear. Unless there is a crown clearance problem at top. Keep the psi down. Latex tubes.
For comfort why not a custom steel fork? The 760 has 73.5 head angle, you could easily use 60mm of rake, maybe even 65. Have the builder do it with Kaisei Toei Special blades and now you have classic comfort.
Last edited by 63rickert; 06-16-20 at 03:21 PM.
#83
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Just kinda wanted to own up to my own shenanigans. I was in the process of installing the innicycle headset from our awesome forum member. I've never installed a crown race before and I royally messed it up. Hopefully I'm not out an entire headset, but I guess we'll see what happens.
My week is off to a not so great start... Lost the brakes on a car I built in grad school while trying to stop at a light. That was exciting! Lug nuts worked loose and wheel broke one of the brake lines. Yeesh.
My week is off to a not so great start... Lost the brakes on a car I built in grad school while trying to stop at a light. That was exciting! Lug nuts worked loose and wheel broke one of the brake lines. Yeesh.
#84
Senior Member
Just kinda wanted to own up to my own shenanigans. I was in the process of installing the innicycle headset from our awesome forum member. I've never installed a crown race before and I royally messed it up. Hopefully I'm not out an entire headset, but I guess we'll see what happens.
My week is off to a not so great start... Lost the brakes on a car I built in grad school while trying to stop at a light. That was exciting! Lug nuts worked loose and wheel broke one of the brake lines. Yeesh.
My week is off to a not so great start... Lost the brakes on a car I built in grad school while trying to stop at a light. That was exciting! Lug nuts worked loose and wheel broke one of the brake lines. Yeesh.
#85
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#86
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Got to Home Depot just as they were closing and grabbed a 1 inch by mistake instead of a 1 1/4. Whacked the thing right in the race and bumped it. When I looked at it I pulled a 'DOH!' but womp.
He's been great so far and while it would suck to have to pay again... I just want to get this bike working.
I had to use a rubber mallet and hammer the crank through the BBR60 bottom bracket yesterday. Thing was so tight! I did some reading and looked like it's not that uncommon. That said... I could probably have used a bit of grease or lube on it but I thought the inner BB came pre greased like some of the threads did. It should have still had some grease on it from being on the other bike since I swapped things over. Sigh.
The innicycle headset looks really promising though. Part looks very well made. The headset also does capture the fork threads which is awesome.
I'm still tempted to grab a carbon fork on the off chance that I decide to weenie a bit down the line, but man this headset looks so good with the frameset that I'd feel bad splitting things up!
He's been great so far and while it would suck to have to pay again... I just want to get this bike working.
I had to use a rubber mallet and hammer the crank through the BBR60 bottom bracket yesterday. Thing was so tight! I did some reading and looked like it's not that uncommon. That said... I could probably have used a bit of grease or lube on it but I thought the inner BB came pre greased like some of the threads did. It should have still had some grease on it from being on the other bike since I swapped things over. Sigh.
The innicycle headset looks really promising though. Part looks very well made. The headset also does capture the fork threads which is awesome.
I'm still tempted to grab a carbon fork on the off chance that I decide to weenie a bit down the line, but man this headset looks so good with the frameset that I'd feel bad splitting things up!
Last edited by ridethecliche; 06-17-20 at 06:20 AM.
#87
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Just dropped the frameset off at bilenky in Philly to have them respace the dropouts and check the frame / fork alignment.
May try to see what they say about the adjustable dropouts and tire clearance. Low key hoping they can test fit something they have sitting around and tell me that 30s will work. Realistically, I'll be using 25s or 28s on this. They'll probably ride infinitely better than whatever skinny tires came stock on the bike three and a half decades ago!
Also, just a teaser.


Test fit
frame with innicycle headset as it was dropped off to bilenky today. On a relatively accurate bathroom scale, the weight was consistently 6.6lbs for all the above. Hoping the build comes in at under 20lbs!
I need to find a 120mm silver stem now!
May try to see what they say about the adjustable dropouts and tire clearance. Low key hoping they can test fit something they have sitting around and tell me that 30s will work. Realistically, I'll be using 25s or 28s on this. They'll probably ride infinitely better than whatever skinny tires came stock on the bike three and a half decades ago!
Also, just a teaser.


Test fit

I need to find a 120mm silver stem now!
Last edited by ridethecliche; 06-25-20 at 07:51 PM.
#88
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If you happen to see a silver innicycle headset sitting around Bilenky’s shop ask him when he plans on installing it

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I'll let them play with mine to check it out if they want! If you talk to them tell them to feel free to mess around with mine if they want to see what it's all about. One of their mechanics looked intrigued by it!
#90
Senior Member
They have had one for over a year now. I visited them to show them the idea and they were excited about installing one on a customer’s bike for some pictures and a social media post. Then crickets. Maybe seeing one on your bike will inspire them to actually use the one they have. I’d prefer that to messing about with your bike!
#91
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Haha tell them they can post mine 
That bike always sparks some conversation since so many american framebuilders got their start in that factory. Also... it's purple. What's not to love?
I think I'm going to pick it up on tuesday. I hope I can get it all built up tuesday afternoon/evening. I think it should be pretty quick since it doesn't have integrated cables that I need to cut housing for. I messed that up so many times on my other frame... I hate it.

That bike always sparks some conversation since so many american framebuilders got their start in that factory. Also... it's purple. What's not to love?
I think I'm going to pick it up on tuesday. I hope I can get it all built up tuesday afternoon/evening. I think it should be pretty quick since it doesn't have integrated cables that I need to cut housing for. I messed that up so many times on my other frame... I hate it.
#92
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It's been a slog but the bike is finally built. I know I know... I'm teasing without pics but it's late!
With no weight weenie parts anywhere in sight, save for a thomson masterpiece seatpost I've had for the last 12 years... The bike comes in at just above 22 lbs. My goal was to have this bike under 20, so I'm going to swap over my 'nice' wheels tomorrow to see how big of a difference that makes. Should knock off a pound if not a hair more.
I've been working on two builds over the last few weeks. This and my 'regular' road bike. Goal for that bike was sub 18 lbs and for this is sub 20. This one has shimano 5800 and the 'regular' bike has R7000. Neither are light groupsets so I guess I shouldn't be all that surprised.
All that said... I can't wait to get out on this thing. Hopefully tomorrow or weds!
With no weight weenie parts anywhere in sight, save for a thomson masterpiece seatpost I've had for the last 12 years... The bike comes in at just above 22 lbs. My goal was to have this bike under 20, so I'm going to swap over my 'nice' wheels tomorrow to see how big of a difference that makes. Should knock off a pound if not a hair more.
I've been working on two builds over the last few weeks. This and my 'regular' road bike. Goal for that bike was sub 18 lbs and for this is sub 20. This one has shimano 5800 and the 'regular' bike has R7000. Neither are light groupsets so I guess I shouldn't be all that surprised.
All that said... I can't wait to get out on this thing. Hopefully tomorrow or weds!
#93
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Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
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#94
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#96
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What is your plan for handlebar height?
#97
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Will have to ride and figure out. Will compare to the other road bike but was going for a more relaxed position on this.
Was actually going to message you to buy another couple of those spacers till I figure it out!
Those are actually the same bars as in the previous images. I sanded them down to silver. Agree with you about the stem angle. Might have to do what you did!
Was actually going to message you to buy another couple of those spacers till I figure it out!
Those are actually the same bars as in the previous images. I sanded them down to silver. Agree with you about the stem angle. Might have to do what you did!
#98
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Will have to ride and figure out. Will compare to the other road bike but was going for a more relaxed position on this.
Was actually going to message you to buy another couple of those spacers till I figure it out!
Those are actually the same bars as in the previous images. I sanded them down to silver. Agree with you about the stem angle. Might have to do what you did!
Was actually going to message you to buy another couple of those spacers till I figure it out!
Those are actually the same bars as in the previous images. I sanded them down to silver. Agree with you about the stem angle. Might have to do what you did!
For example, both the Kalloy Uno and Bontrager stems I used on my builds have 40mm clamp heights. That makes using all of the 90mm inni steerer height easy (2 x 20mm + 1 x 10mm spacer) which os how the Cannondale was set up. If you use a Ritchey stem, it will have a 42mm clamp height in which case I could provide a 18mm spacer by cutting 2mm off a 20mm.
Stem angle affects handlebar height so make sure you get what you want there first, especially if going -17 degrees as that will lower your bars considerably.
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#99
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Just spent a bunch of time moving some parts around betwen bikes.
With my Psimet2001 built clinchers on 25s, it comes in just under 21lbs. With a carbon post and slr saddle it's at 20.5ish. Close enough lol.
I need to get the stem sorted as I mentioned but I doubt it's going to get below 20. I'm using 105 for both these bikes so it makes sense. I decided it wasn't worth the extra 225-250 to get ultegra r8000 which would have been the difference right there.
I'm content.
With my Psimet2001 built clinchers on 25s, it comes in just under 21lbs. With a carbon post and slr saddle it's at 20.5ish. Close enough lol.
I need to get the stem sorted as I mentioned but I doubt it's going to get below 20. I'm using 105 for both these bikes so it makes sense. I decided it wasn't worth the extra 225-250 to get ultegra r8000 which would have been the difference right there.
I'm content.
#100
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Just rode the bike today for the first time and when I got home I wondered if I should sell my 'main' road bike... Even though that will require swapping over a bunch of parts.
I did the same loop I've done a lot and averaged a higher speed on it and was more comfortable than on a bike that weighs 4 lbs less.
The headset is fantastic. I've raced this frame in college and recall how the front end felt in a sprint. After 20 miles on the bike I felt comfortable pushing it a little bit so I did an opener. Hit 1250W and the front end felt solid. I'm so happy with it.
I honestly might have to look at getting the chain stays dimpled or something to fit 30s or maybe 32s in there. This bike would be perfect for hours and hours in the saddle after that.
These wheels have 23 on them I need to wear down. I might throw my set of carbon clinchers on the other bike and put my good al clinchers with 25s on this. I'm sure it would ride so so so much better.
I did the same loop I've done a lot and averaged a higher speed on it and was more comfortable than on a bike that weighs 4 lbs less.
The headset is fantastic. I've raced this frame in college and recall how the front end felt in a sprint. After 20 miles on the bike I felt comfortable pushing it a little bit so I did an opener. Hit 1250W and the front end felt solid. I'm so happy with it.
I honestly might have to look at getting the chain stays dimpled or something to fit 30s or maybe 32s in there. This bike would be perfect for hours and hours in the saddle after that.
These wheels have 23 on them I need to wear down. I might throw my set of carbon clinchers on the other bike and put my good al clinchers with 25s on this. I'm sure it would ride so so so much better.
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