How To Convert From Downtube Shifters To STI Shifters (Brifters) On Vintage Bike

Posted by on in Projects, Shifters


I show and explain the whole conversion process as I upgrade an early 90’s Trek road bike from downtube shifters and install Shimano STI shifters (brifters or integrated brake/shifters). This definitely brings new life to an old bike. The shifters I use in this upgrade are Shimano Sora 3×7 shifters. But Shimano RSX 3×7 shifters are a excellent choice also. You can find these for sale on eBay. BTW, I didn’t go to higher speed shifters because that would require a new wheel with a wider axle. The rear triangle would have to be spread to accommodate the wider axle. And it’s not safe to cold-bend a aluminum frame. If you have a steel frame, then spreading the rear triangle might be an option. But that goes beyond this video.

The little part I mount on to the downtube braze-on is called a downtube cable stop or braze-on cable stop or variations of that.
Here is it on Amazon:
or you can find them on ebay.


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