Change Trek Domane SL5 road bike to gravel bike
#1
Newbie
Thread Starter
Join Date: May 2024
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Change Trek Domane SL5 road bike to gravel bike
I recently bought a new road bike and am planning to convert my old bike, a Trek Domane SL5 with a Shimano 105 11-speed groupset (Front: 50/34, Rear: 11-34), into a gravel bike.
Both the crankset and cassette are worn out and need replacing. I intend to use 38c gravel tires on it.
Could you advise on suitable replacements for the crankset and cassette? Also, is it possible to retain my current front and rear derailleurs?
Are there any other considerations I should keep in mind during this conversion?
Thanks in advance.
Both the crankset and cassette are worn out and need replacing. I intend to use 38c gravel tires on it.
Could you advise on suitable replacements for the crankset and cassette? Also, is it possible to retain my current front and rear derailleurs?
Are there any other considerations I should keep in mind during this conversion?
Thanks in advance.
#2
Senior Member
Join Date: Oct 2013
Location: Mich
Posts: 7,537
Bikes: RSO E-tire dropper fixie brifter
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 3,103 Times
in
1,978 Posts
are you planning on keep the drop bars on it? A dropper post might be of benefit.
__________________
-Oh Hey!
-Oh Hey!
#3
Deraill this!
Join Date: Jun 2019
Location: Central Ohio
Posts: 670
Bikes: 18 Cdale Quick 1, 94 S-Works M2, 98 730 Multitrak, and a few others
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 151 Post(s)
Liked 459 Times
in
268 Posts
You can stick with the 105 and replace the crank rings. As for cassette, the 11-34 used in the GRX series is the same as 105. A GRX rear derailleur has a clutch that reduces chain slap but that's not necessary. I found this interesting as I have been researching for a gravel build:
GRX400 = Tiagra
GRX600 = 105
GRX800 = Ultegra
GRX400 = Tiagra
GRX600 = 105
GRX800 = Ultegra
#4
Senior Member
Join Date: Apr 2016
Posts: 1,389
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 554 Post(s)
Liked 487 Times
in
374 Posts
I recently bought a new road bike and am planning to convert my old bike, a Trek Domane SL5 with a Shimano 105 11-speed groupset (Front: 50/34, Rear: 11-34), into a gravel bike.
Both the crankset and cassette are worn out and need replacing. I intend to use 38c gravel tires on it.
Both the crankset and cassette are worn out and need replacing. I intend to use 38c gravel tires on it.
#5
Expired Member
Join Date: Jun 2007
Location: TN
Posts: 11,834
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 3781 Post(s)
Liked 5,763 Times
in
2,907 Posts
I'd get a GRX crank. They are reasonably priced and a straight swap. You may be able to use your existing 105 FD but it's trial and error. Again, GRX FDs are inexpensive. I'd probably get one just to avoid the possibility of having a do over. As pointed out above, your existing RD will work but the GRX has the clutch.
#6
Deraill this!
Join Date: Jun 2019
Location: Central Ohio
Posts: 670
Bikes: 18 Cdale Quick 1, 94 S-Works M2, 98 730 Multitrak, and a few others
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 151 Post(s)
Liked 459 Times
in
268 Posts
I'd get a GRX crank. They are reasonably priced and a straight swap. You may be able to use your existing 105 FD but it's trial and error. Again, GRX FDs are inexpensive. I'd probably get one just to avoid the possibility of having a do over. As pointed out above, your existing RD will work but the GRX has the clutch.
#7
Expired Member
Join Date: Jun 2007
Location: TN
Posts: 11,834
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 3781 Post(s)
Liked 5,763 Times
in
2,907 Posts
That is correct. Sometimes a road FD will work, sometimes it won't, trial and error. Or just get the GRX and be done.