Right Size
03-17-24, 07:00 AM
#1
Newbie
Thread Starter
Join Date: Mar 2024
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Right Size
I’m 5’8 and usually ride a 54cm bike. I have come across a Trek ALR 4 in a 52cm. Will that bike work or would it be too small?
03-17-24, 08:07 AM
#2
Senior Member
Join Date: Jan 2007
Location: Eastern VA
Posts: 1,724
Bikes: 2022 Fuel EX 8, 2021 Domane SL6, Black Beta (Nashbar frame), 2004 Trek 1000C for the trainer
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 270 Post(s)
Liked 447 Times
in
266 Posts
You must mean the Checkpoint? If so and it is a 2023 the geometry is odd when compared to others. You may need to downsize from your normal top tube length size. Best to test ride. I feel the Trek sizing charts is off for the Checkpoint but does apply to the Domane.
It also depends on what you have planned for it. The stand over for like size of the Checkpoint compared to a Domane is about 3 cm or so larger. Frame reach is longer but the stem is shorter. Sizing down drops the stack height so one bends over farther. But flipping the stem up can compensate for this. It just not look as sporty.
Suggest to look at the stand over
It also depends on what you have planned for it. The stand over for like size of the Checkpoint compared to a Domane is about 3 cm or so larger. Frame reach is longer but the stem is shorter. Sizing down drops the stack height so one bends over farther. But flipping the stem up can compensate for this. It just not look as sporty.
Suggest to look at the stand over
03-17-24, 08:35 AM
#3
Senior Member
Join Date: Jun 2018
Location: SW Ohio
Posts: 2,397
Mentioned: 93 Post(s)
Tagged: 0 Thread(s)
Quoted: 1104 Post(s)
Liked 1,825 Times
in
878 Posts
I have a strict policy to not buy any bike that needs the stem flipped positive as soon as I get it.
__________________
Last edited by nomadmax; 03-17-24 at 11:12 AM.
Likes For nomadmax:
03-17-24, 10:25 PM
#4
Full Member
You'd be very hard-pressed to even tell the difference, if they weren't labeled. Specifically, the reach on the 54 is 4mm longer than the 52, and the stack is 18mm higher. The reach difference is totally inconsequential, and the stack difference is way less than you can adjust for with spacers and stems.
03-18-24, 08:11 AM
#5
Sunshine
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 16,614
Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo
Mentioned: 123 Post(s)
Tagged: 0 Thread(s)
Quoted: 10965 Post(s)
Liked 7,492 Times
in
4,189 Posts
Compare these things...
- stack height
- reach length
- stem length
- stem angle
- spacer stack height
- front center measurement(least important since it may not be easily known)
A 54cm bike by one company can ride like a 58cm bike by another company.
