Dutch-made Brompton telescopic handlebar stem

Page may contain affiliate links. Please see terms for details.

12boy

Guru
Location
Casper WY USA
My cables were set up for an S bar and they are fine. No, I meant a QR for mountain bikes and hybrids as a lot of road bikes have a bolt set up integral to the seat post. To tell the truth my cables are probably bastardized beyond redemption as I buy 10-20 feet from the LBS and cut to length as needed. For example my front brake cable isn't split with the gatherer device but goes straight down in front of the handle post to a V noodle used to smooth out the cable arc. I don't think I mentioned on this post but I found Jagwire elite brake cable housing works best as it doesn't kink up as much, since has both spiral housing and non-compression housing. The rear brake path is not very straight and this cable housing works best for me.
 

12boy

Guru
Location
Casper WY USA
Those look fine. Mine are Al, but the steel would obviously be heavier and stouter. I would like to see a pic of your finished product with the Andros or whatever you wind up with. BTW, I have mine so tight it's hard to open. If it wears out I'll just get another.
 
OP
OP
S

snazpizaz

Well-Known Member
Location
London UK
@12boy - cheers
will do - i'm still going to look at the telescopic option - but when i pull it all together i will create a post and message you - may be by spring (?) i'll get it together as i may need to install new cables and that means joining a local workshop and learning how to do that.

cheers folks
s
 
OP
OP
S

snazpizaz

Well-Known Member
Location
London UK
@berlinonaut
hi - i don't know if you are still around - just catching up with all the info ....cheers

1. I've managed to join the bromptontalk and looking thro their posts.
I found a useful post on limits of upright mods on a brommie due to 'small rear-train' issues causing instability by increasing the chance of backward tilt which has been a useful point i bring to this discussion in case others are thinking of the same mod as myself:
https://groups.io/g/BromptonTalk/topic/48482712#86641

2. I'm not sure i've found the DIY picture-story you mentioned but i found this:
https://groups.io/g/BromptonTalk/topic/48390184#25890
which describes method for telescopic stem building if that's the one.

3. If i did understand your recs for:
https://byschulz.com/produkt-kategorie/speedlifter/
and
https://www.fun-wheels.de/lenkervor...hrrad-zubehoer/lenker-u-vorbauten/a-55300335/
you rec'd these because of the presence of a height gauge and a QR .... with a lock mechanism (?)
Cheers - i'll take these to whoever i approach if i choose to tackle a telescopic build as not clear how these would fit onto a brommie stem myself.

cheers s

cheers again s
 
Last edited:

berlinonaut

Veteran
Location
Berlin Germany
1. I've managed to join the bromptontalk and looking thro their posts.
2. I'm not sure i've found the DIY picture-story you mentioned but i found this:
https://groups.io/g/BromptonTalk/topic/48390184#25890

Here you go: https://groups.io/g/BromptonTalk/album?id=160110
3. If i did understand your recs for:
https://byschulz.com/produkt-kategorie/speedlifter/
and
https://www.fun-wheels.de/lenkervor...hrrad-zubehoer/lenker-u-vorbauten/a-55300335/
you rec'd these because of the presence of a height gauge and a QR .... with a lock mechanism (?)
At least the by-schulz one is a quality item. I've never mounted one of those on a Brompton, never seen one mounted to a Brompton and do not know of anyone who did this. It could however be an interesting solution, not the easiest or cheapest one but one that offers a lot of options while avoiding some typical issues.
 
OP
OP
S

snazpizaz

Well-Known Member
Location
London UK
@berlinonaut cheers - helpful ! :okay:

If you've got time:......
1. How do you rate the photo-diy - just out of interest ?
Also:
1. In theory, do you think i could replace the listed Batavus seat post and incorporate the by-schulz into the instructions as a replacement component part ?
2. I don't get how the stem clamp is held in place on either this or the dutch model. Do you know how these are retained in position ?
3. If i understand it correctly there's quite a bit of work going into creating a handlebar clamp head. Could i not attach an ahead instead and then a suitable riser ?
4. I see they glue two rings to centre the handlebar within the handlebar clamp but it seems like this method will still have the problem of needing to centre stem in relation to front wheel everytime used - is that correct assumption ?

2. Where you say the by-schulz offers a lot of options and avoids some typical issues:

Options and issues already mentioned:
Positives:
Presence of a height gauge
Ability to incorporate ahead / riser / suitable handlebar clamping
Negatives:
Raised height limited in relation to length of straight section of Brompton stem
Potential failure of a stem QR with no locking
Potential failure of a handlebar clamp QR with frequent use
Need to correct the front-facing / front wheel alignment upon each use.

Do you see the by-schulz negating any of the negatives above ? Or enable any options not listed ?


cheers - appreciated. s
 
Last edited:
Top Bottom