HOW TO LOWER HANDLEBARS AND STEM (ADJUSTING HEADSET) *TIGHTEN HEADSET* SLAM STEM. SPECIALIZED TARMAC

HOW TO LOWER HANDLEBARS AND STEM (ADJUSTING HEADSET) *TIGHTEN HEADSET* SLAM STEM. SPECIALIZED TARMAC

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43 Comments

  1. Mario on March 23, 2023 at 7:00 am

    Always interesting



  2. Barclay Neel on March 23, 2023 at 7:04 am

    Can you raise it any higher with the setup you started with, with all the spacers below? I have a Specialized Allez Sport and wouldn’t mind it raised a half inch or so. Would I need a different stem? New to road biking. Thanks



  3. Fritz on March 23, 2023 at 7:04 am

    Glad I saw this. I was so nervous about trying this….but challenged myself because my curiosity was driving me nuts. I was able to find out quickly that slamming my stem was a neck breaker. Instant pain with a centimeter drop. Put it right back with my 15mm underneath. Apparently I’m between sizes, on a 52 tarmac with a 120 head tube. If I rode a 54, my headtube would be 140mm and wouldn’t need the spacers. Very helpful vid. And yeah, it takes very little to compress.



  4. ettore silvatti on March 23, 2023 at 7:06 am

    This video helped me a lot



  5. Wioletta Wozniak on March 23, 2023 at 7:07 am

    works and looks wonderful



  6. Juan Padilla on March 23, 2023 at 7:07 am

    Cool little tip. Never knew that! I’m not much of a mechanic and I probably would take it in since the only thing I can do is put in handlebar tape, but watching your videos makes it a little easier to try some things. I like the flush look better!



  7. Duckman DuckFairy on March 23, 2023 at 7:08 am

    Torque is key, too much catastrophe not enough you get slop and catastrophe!



  8. Ivan Ivanov on March 23, 2023 at 7:08 am

    10x, Specialized for the dumbest compression plug on the market. First thing I did on my new frameset was to throw it away.



  9. DELAWAREBOWHUNTER on March 23, 2023 at 7:08 am

    I really needed it! Thank you! 🙂



  10. SaHiL KuKrEjA on March 23, 2023 at 7:08 am

    thanks for the video – i always wanted to be in more aero position on my cannondale. the video kinds of gives me the confidence of doing it on my own
    my stem is that of fsa and i could see there are 6 (10mil each) rings. is it a good practice to keep at least 30mil stem length (when you’re slamming it)



  11. ABIHAY, CHRISTIAN ANGELO P. on March 23, 2023 at 7:09 am

    Recomended bike size for 5’5?



  12. Shah Balot on March 23, 2023 at 7:09 am

    Why wont my go down deeper?



  13. martibs on March 23, 2023 at 7:09 am

    Correct way to do it is to buy a new stem with a lower angle 🧐



  14. Duckman DuckFairy on March 23, 2023 at 7:10 am

    I would recommend a good torque wrench for anyone who does their own work! As a reminder always torque equally and evenly across!



  15. Elmer Richardson on March 23, 2023 at 7:11 am

    I saved this video. Thanks for the information.



  16. Stephen on March 23, 2023 at 7:13 am

    Thanks for the tip. I will take it to my bike shop for them to replace the loose bearings.



  17. March on March 23, 2023 at 7:14 am

    Is something wrong, if you cut steerer tube too short? And then the top of your stem is for example 0,5cm-1cm above the edge of the steerer tube? Then solution is, you take more spacer’s out, but can you just leave it like that or not? Just curious.



  18. Edward Kohn on March 23, 2023 at 7:14 am

    awesome video helps a lot



  19. Wakly Pierre on March 23, 2023 at 7:15 am

    nice… now do the aerofly 2



  20. Michael Velazquez on March 23, 2023 at 7:15 am

    This was great and very helpful, I look forward to more of these. 👍🏼



  21. MANGEL on March 23, 2023 at 7:16 am

    If i got a new Carbon fork that i need to cut by my self. Is it possible to have 35mm spacer below the stem. Everyone is saying maxinum 30mm. Is it not safe enough with 35mm spacer?



  22. GC Performance on March 23, 2023 at 7:20 am

    I hope this video helps out everyone who needed it 🙂



  23. Krisna Wijaya on March 23, 2023 at 7:20 am

    Thanks for this 🙏. If possible for the next video, please make about internal cable routing for the shifter



  24. thePrince S1k on March 23, 2023 at 7:20 am

    Can you do this with no spacers at the bottom of the stem? Like super slammmed?



  25. Chef Bojan on March 23, 2023 at 7:23 am

    Sick bike



  26. LOGICAL JAY on March 23, 2023 at 7:26 am

    A whats up..can you recommend a good integrated stem to hide cables but can still add spacers..I have the cervelo caledonia with mechanical ultegra and i like the original stem height…i dont want to cut my fork..i want to use the "DEDA SUPERBOX STEM" but I don’t know if the stem can be used with spacers to keep my original factory height. I’m looking for that clean flush cockpit look where the cables go internally into the stem but I don’t want to slam it like I did my tarmac sl6..



  27. notourown on March 23, 2023 at 7:28 am

    Thank you!



  28. Mark Skinner on March 23, 2023 at 7:30 am

    Can you post a video of the same thing for a Scott Addict RC?



  29. william rubin on March 23, 2023 at 7:34 am

    I have a Caledonia 5 same bolts. Would I put the spacers on top after removing it from bottom?



  30. HG on March 23, 2023 at 7:35 am

    What if you lower your stem but your expander plug isn’t long enough because how the fork was originally cut. Technically, wouldn’t the stem be clamping into half or not on the plug itself/ possible cracking?



  31. Nic Restrepo on March 23, 2023 at 7:37 am

    Why do they recommend a 5mm spacer at the top so that the cap is not flush? Ive heard this a few ties and im not sure why



  32. Alan Santoyo on March 23, 2023 at 7:40 am

    Ht bro, i have a problem, i want to upgrade my fork On my mtb, meta ht commencal, but the steerer tube in the one a bought is 18cm and the stock one 20cm, how afect in handling? I dont know if i would sent it back or remove all the spacers so it can fit



  33. chris numnuts on March 23, 2023 at 7:41 am

    thank you I did have to slightly loosen head set belt and followed your instructions job a good one



  34. Random Asian on March 23, 2023 at 7:42 am

    boom time to slam my stem and have a perpetually sore back!



  35. Lolz on March 23, 2023 at 7:43 am

    sir pls i’m in a desperate situation i took out my “plug” by accident and when i did i heard something drop in the bike and now i can’t seem to put the plug back.



  36. DanTuber on March 23, 2023 at 7:49 am

    What’s your opinion on white frames? Too much hassle to keep clean?



  37. Adonis Sebolino on March 23, 2023 at 7:49 am

    Very helpful indeed, thanks a lot @GC Performance



  38. Mince Hogan on March 23, 2023 at 7:50 am

    brilliant Vid GC, more of the same please……….these are perfect for noobs like myself………..
    stupid noob question: is it strictly necessary to use a torgue wrench when doing this or if you dont have one just common sense and normal tighting without going nuts and cracking the fork will do aswell ?



  39. xfilecity on March 23, 2023 at 7:51 am

    Thank you sir, much appreciated. I just did it on my FELT VR5 and it feels so much better.



  40. šterman on March 23, 2023 at 7:51 am

    i wonder how long the compresion plug is becuise i think its 30mm and youre bottom stem bolt isnt supported which can resoult in damagin the fork steerer tube or braking it



  41. Nic Restrepo on March 23, 2023 at 7:52 am

    I’d love to see your method for cutting a steerer … youtube is full of them and they all seem to skip over some of the things to take into consideration when measuring…dont ask me how i found out.



  42. B B on March 23, 2023 at 7:52 am

    That was very straightforward and helpful thanks so much



  43. Richard Donovan on March 23, 2023 at 7:52 am

    hey man by any chance do you know the maximum number of spacers that is safe to put under my stem? I have an S-works tarmac SL6 with 45mm spacers under the stem and im not sure if that amount of spacers is still safe to ride. Thanks!