It's 4cm more than the original stem on the Vado SL. How does that affect posture? Negligeable?
Oh no! It affects the riding position very much! Let me tell you my own experience.
I'm 173 cm tall but have short legs with my own "standover height" of 78 cm, and I have relatively long arms. I had to buy Vado SL size M for the top tube standover height but always felt my Vado to be too small otherwise. Initially, I had to ride in a really upright position, which was making headwind slow me down dramatically. Moreover, the most of my body weight was resting on the saddle, making my butt hurt.
I chose the 100 mm RS ShockStop (which is 2 cm longer than the stock stem), and that improved my riding position (now, I regret I didn't choose the 120 mm stem...) I felt better on my rides in a more sporty position, so I started experimenting...
- Moved the handlebars as low as possible with existing steerer tube and spacers...
- Slammed the ShockStop Stem to -6 degrees (it required relocating the elastomers)
- Added SQlab Innerbarends...
- Found out I needed more firm elastomers for the ShockStop (as more of my weight rested on the bars). Restored the original set of elastomers (as it were the drop bars).
All those actions made me ride in a sporty position, with my back slowly bent, the body weight shifted off the saddle. All my aches were gone, and I got more aero!
It is absolutely your choice related to the stem length. You have my word the 100 mm one works perfectly!
After all customisations.
I'm pissed at myself as I dismissed a lot of very good deals over the last
months...
Just think of me not buying a Vado SL for a long time as I wrongly determined from the specs that e-bike would be too tall for me...