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Just a Trek 1500 SLR (Sometimes other bikes, stuff, and pictures of scenery)

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Old 04-07-18, 10:02 AM
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Just a Trek 1500 SLR (Sometimes other bikes, stuff, and pictures of scenery)

Hi,

1500SLR here. This is my corner of the forum to talk about things that interest myself. Perhaps this will entertain other people. Like other people I kind of got hooked on riding retro bikes. I'm currently in the process of rebuilding my Trek 1500 Literally piece by piece. Mr. 1500 SLR started out like once upon a time. He started as just another guy with a modestly priced bike. He found a 2007 Trek 1500 SLR on eBay with less than 10000km and a single elderly owner. This bike turned into something more of a serious thing. Upon consulting with his brother Mr. 1500 SLR decided that he would rebuild this bike in a sympathetic fashion relevant to keeping with the age of the bike he was dealing with.



This in turn led to some consultation with Mr. 1500SLR's brother as to whether this build would be possible and more importantly cost effective. We soon developed a budget and a plan of attack to respectfully turn this bike into a Retro DI2 project bike. This quickly turned into a project with a life of its own. Going backwards and forwards we managed to acquire the nescessary electronic components to build a 6770 DI2 bike. Giving that this involved the more difficult task of finding the nescessary components, most of which were now 6years out of date, well out of production and unobtainium by any wholesalers we could get in touch with this became more of a headache. While we managed to eventually acquire the nescessary parts this was not without realising Mr. 1500SLR made a mistake by trusting people at face value in buying a broken 6770 rear derailleur. After promptly returning said derailleur and receiving a refund Mr. 1500SLR found another rear derailleur. This time new old stock coming from the last of a supply in a store located in Japan.

Stage 1:

So the project began. It began in someone's garage like all great projects and the DI2 retro bike became a thing. Along with the many other projects that Mr. 1500 SLR has worked on, some more complete than others, this one had a beginning. We began by working on the DI2 retro bike over the Easter break and the project started in earnest. Despite not having an official name yet, it managed to have quite a lot of work done on it.



A quick trip to the bench vice would lead to the first of many holes being drilled in the frame. So the bike that was once considered "unobtainium" began to turn into a new bike project called "project drillium." In its true sense, it was a throwback to the GOAT himself Eddy Merckx. Of course you will need to get directly in contact with Mr. 1500SLR later to find out whether he carries a set of allen keys and spanners to do his bike adjustments while riding.



Returning back to those holes would show that they now concealed a bigger plan. The plan was for them to be a point for the DI2 cables to exit from. Project drillium also began to develop. With much more work to be done Mr. 1500SLR could not sit around and take photos all day but he managed to get this one showing the remains of what was once an intact bottom bracket. It now had sizable hole in it to fit DI2 cables through it. There was also a mount point for the external junction box and a second junction concealed in the seat tube.



Some more test mounting would show where the front derailleur would be located. We found after some technical measurements we would be able to go all the way up the down tube, and exit somewhere near the head tube in the frame. Wiring the bike like this would also allow for DI2 cabling that would reach the handlebars. However, this was a process of identifying the longest possible DI2 cables that were easily able to be found. Having previous measurements and working from engineering plans allowed us to achieve this to precision.



Some amount of complaining about internal routing later, we worked the cable routing through the internal tubing and we had a proper mount for the DI2 front derailleur. While this was a headache at first we achieved first base of having a front derailleur installed in the retro bike.



This resulted in a bit more work, another trip to the vice and more holes being drilled. More drillium, for weight saving of course, and a new hole in the seat stay for the rear derailleur. With much work done we ended up with a fairly neat solution to run the rear derailleur cable through the seat stay to meet the external junction box at the bottom bracket.



Again, some more mounting. After a few painful moments trying to feed the DI2 cable through the seat stay we managed to achieve another milestone of this build of having a DI2 rear derailleur mounted on the retro bike with internal routing. Two stages of the routing project achieved and only a couple more to go. The DI2 retro bike project was beginning to take shape.



Returning to the bottom bracket would reveal that the DI2 retro bike had begun to develop a serious case of worms which could only be solved by mounting the external junction box to the frame and analysing where exactly we wanted to run the cables out of the bottom bracket. We also considered where we wanted the external junction box. We finished on this being the ideal solution. Soon to be hidden behind Mr. 1500SLR's front cranks we found this solution to be almost ideal to begin with.



With no further time to be wasted we began with the process of wiring the external junction box we finished with this solution. It allowed us just enough room to mount the bottom bracket cup and still have room for cable routing. This would leave time to proceed further towards test fitting a bottom bracket to the DI2 retro bike.


We finished that and moved on to the process of test fitting the old bottom bracket shell. This was not going to be the bottom bracket shell we would finish with but it helped in identifying the issues of fitting a bottom bracket while staying away from the cable infestation we created. Not the best, but this would be fixed later. Photos of this will come with the next post.

To be continued.



Last edited by 1500SLR; 04-09-18 at 11:02 AM.
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Old 04-07-18, 10:21 AM
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Stage 2:

As per above we test fitted the old bottom bracket in to check for clearance. After a fair amount of fiddling around we got it to fit pretty snugly. The result of fitting the old bottom bracket is pictured below. While It cleared the cables this bottom bracket wasn't going to stay for very long and it was mostly for testing purposes.



In my rush and excitement I actually forgot to take a picture of the hole where the cables come out to the handlebars and shifters. I will have to go back and make a note to deal with that in a later stage of the build. For now this photo will have to suffice for a representation of where it actually will come out on the bike. Seems I was trying to be artistic and didn't get a picture of the drive side of the bike. It will have to wait.



The next stage in fitting a new bottom bracket would involve moving to the bike shop to get a few other things done and order in a new bottom bracket. This was the stage, while we were testing all of the DI2 equipment, we found out that the rear derailleur did not want to talk to the Shimano software. We hooked it up manually, and then even tried to force the firmware onto the old rear derailleur. Unfortunately it was all to no avail. The lesson learned is really not to buy electronic bike parts without testing them.



In the mean time, while at the bike shop, we fitted the new bottom bracket and put the cranks back on. This was some kind of an achievement considering the noodly mess of the bottom bracket before. We also got around to fitting the seat post battery in and got that ready for it to do its work fairly soon. Everything fits as we expected it to. Although, after pulling apart all the wiring to work out why the bike would not shift, we also had to remove the shrink wrap. It's not as neat for now.





When we moved onto the seat post battery it provided from some kind of boring progress picture. It was boring, but hey whatever. Some progress is better than none at all. The battery fits in the seat post and its ready to be used. The derailleur we sourced from new old stock is on its way and we have an ETA of about 5 days to just over a week before it should be ready to be switched on and tuned. It's getting pretty close to being able to be rode by me. I'm quite looking forward to getting back on this bike once its done.

This is a shorter update as we're getting close to being able to complete this project. There will be more photos and stories to share once we have completed this build. I'll be able to show some whole bike progress once it's done. I'm a bit apprehensive as this is only the mechanical stage. There is still a lot to be done with regard to getting a new stem and a better fitting seat so full bike pictures may be further down the road.

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Old 04-07-18, 12:27 PM
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Reserved for stage 3:

Stage 3 will include final build to being able to ride my bike again. At the moment my bike is hanging on a wall at the bike shop I have access to for tuning and diagnostics. This is a small preview. It's close but not close enough.



Stage 3 update for the 21st of April 2018:

There is still much work to be done but my bike is on the ground again.



Stage 3 update for the 23rd of April 2018:

At the moment the bike is in a ready to ride state. I got it home this afernoon and took a quick shot of it. We had a set of flat pedals on it so that we could right it back between the shop and the warehouse where the workshop is. This pretty much marks project completion date. There will be a few more tweaks. I need to do something about the stem and I need to drag it back to the workshop eventually because it needs a DI2 update done. The rear derailleur has never had its firmware update done so its in that really awkward state Shimano was in 7 years ago where everything was single click for upshift and down shift. We should be able to download the update for multishift and I think it might be able to run the one for synchro shift but I don't really want it. It's just kinda weird to be riding along and having your derailleur deciding what it wants to be doing by itself.



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Old 04-09-18, 06:58 AM
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With the Trek out of action, and while I've been waiting, I've been riding my Giant instead. This was another project bike I upgraded to a SRAM Rival groupset last year. Riding the Giant has been keeping me active and on a bike. The Giant has also been my N+1 bike and my steel steed. When I built this bike its purpose was to get me back into riding bikes after quite a few years off.

As I've gotten more serious about riding again this year and will probably ride an imperial century in a one day classic in the middle of this year its not really enough by itself though. When you train hard you need a serious road bike and that's where my Trek 1500 SLR comes in. It will be a reliable DI2 bike that will go the distance of a proper classic without any mechanical issues.

That said though, I have to say that going back to basics and riding a flat pedal steel bike is a good change sometimes. When I ride this bike It just gets me back into riding for the sake of riding and the fun that can be had on a road bike. It is a no worries experience. That experience of just having fun on a bike is often one of the first things you can lose when you ride overly seriously or train for any sort of race as I am doing right now. But getting on this bike for me just embodies my philosophy on riding for fun. It is a touring frame so its super comfy to be able to stretch out, but it also has the mod cons of a modern 2x10 groupset. I could have kept the original groupset but it get to the point where its too much maintenance and hassle in rebuilding old Shimano groupsets.


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Old 04-11-18, 01:28 AM
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Another day another ride, today I went out on a ride while still dealing with the after effect of the pox of fluracy. my lung capacity shortly after warming up was practically zero, in fact it still feels a bit like that even after a light ride. I did get the chance to go down to the local river again. However, even with a sedate average speed of 18miles per hour (28kmh/r) I was spent halfway. Time for some rest I think. You can feel ok but there's obviously still some gunk in my lungs that my body can't quite deal with. I decided today to stop for a little while and wait for my lungs to recover.

While I was recovering I shot another bike leaning on something photo for you all to enjoy. This time its drive side showing my SRAM Rival 2x10 groupset and my neat cable routing. This is a nod to my future intentions with my DI2 bike. To put it straightforwardly one of the many reason why I upgraded to 6770 over my 6600 10 speed groupset is because I think side pull cables are ugly, and not only that they kinda make everything messy. I much prefer to be able to hide most of my cables under the bar tape. I think its much neater this way. In the mean time I swapped my brother a Thomson Elite seat post for a 3T one for my bike. The bare aluminum suits the quill stem much better.



Aside from everything else today, my rear derailleur left Osaka today, it should be in Sydney tomorrow, there is a small chance that I will at least be able to put my bike back together completely by this weekend, or more likely by Monday. Either option is good for me.


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Old 04-11-18, 10:56 AM
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cool project
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Old 04-11-18, 05:55 PM
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Originally Posted by jsigone View Post
cool project
Thanks. It should be finished by early next week. We're just waiting for the new rear derailleur to arrive.
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Old 04-17-18, 08:37 AM
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There is a slight update for today. My as new 6770 DI2 rear derailleur arrived from Japan today at the workshop. Full steam ahead for a bike I can ride by the weekend I should hope at this point.
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Old 04-18-18, 12:59 AM
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Oh yeah,

Wednesday update, just another teaser. We got back in the shop today and I got to play around with the computer again while we tuned the rear derailleur. Tonight I'm thinking about going down to the local crit track and doing some laps. I just got home from being out so this day is pretty much done.


But... This bike is all stations go.

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Old 04-21-18, 12:07 AM
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So the update for today is that my bike is back on the ground. It still needs a lot of work, but for now, I can ride it again.
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Old 04-23-18, 05:45 AM
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One more photo for today... It would be really cool to polish the crap out of these cranks but they're anodised and you have to really want to get your alloy replated so that you can polish it and I think it'd be more hassle than what its worth. This is the difference between 6600 and 6700 cranks it wants to be shiny but its not. I'm going to go down to the auto parts store and pick up some Autosol for anodized aluminum and give this a go with a bit of a buff.


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Old 04-25-18, 06:20 AM
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Another day, another ride out on this bike. I'm still getting used to the shift and the ratios with my 6770 derailleurs so I can get a smoother shift. Everything is the same but different.

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Old 09-12-18, 02:50 AM
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Well done!
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