Hi,

am a fairly inexperienced cyclist, but in need of some help, and I'm hoping someone can advise

Problem - I have a Trek DS 8.4 bike, which I want to fit a Yepp Mini front-mounted bike seat to. The problem is the Yepp Mini mounts to the stem, and I don't have enough room on the stem to fit it (i know.. should have checked before)! 2 problems:

1) the stem has to be 20-28mm in diameter, and my one (inc spacers) looks more like 35mm, so it's too wide
2) the stem needs to have 39mm of exposed stem, and mine looks more like around 30mm, so it's too short

I don't want to spend £100 to be able to mount a seat that cost £85! But looking on Ebay I can get suspension forks like the ones I have for around £30 slightly second hand. So my question is:

1) is it possible to solve this? By buying forks that are both longer (on top) and thinner? If it is, can anyone tell me what I am looking for????

Thanks in advance for your help

Glen

This?




It looks to me like you need to have a Quill type stem and not a Threadless type normally found on most mikes since the late '90s.

Check the review on this page. https://www.rei.com/product/815610/ye...-be-1460481359

If you bought this from a store go and ask them how to mount it.

As per BG, the apparent child seat pictured is for the classic old style threaded fork/stem and handle bar. Eg look at the stems on the Trek site for the Cocoa, or Allant or T80+ under the urban utility bikes compared with the "threadless" fork/stem on your bike. Sometimes the threadless
fork + stem can be swapped for threaded , but the "threadless" fork+stem on your bike is incompatible with the seat. It may be cheaper to look for a cheap beater bike with the older threaded fork/stem as some newer bikes have oversized head tubes for which threaded components were never made. You would
have to check with a shop mechanic as to this.