StuBerger

I’m kinda of a older newbie and recently bought a Trek FXS5 and with age and back issues I needed to raise the front up some and a LBS sold and installed a Dimension steer tube extender and I must say it’s a lot more comfortable. My question is are they safe? I understand this bike isn’t a MTB and I’m not climbing a mountain not much stress on the bike. Also is that brand a better one?

fietsbob

An alternative is to have your Trek dealer order a new FX fork with an un cut steerer tube , (of steel)
and leave it long.. add more spacers beneath your threadless stem ..

I have a bike I had to add steerer to I found one , made for a NL company BBB . theirs went inside,

Your 'dimension' brand one goes on the outside.. It is fit for purpose ..




...

hokiefyd 

My dad has these on all of his bikes, many of which are e-bikes, and they appear to be completely safe. My brother took a header over the bars on his Trek DS with one of these on there, and the bars needed straightening after the crash, but the extension tube was just fine.

DSL6

I tried one of those Delta extensions once but I didn't like the looks.

StuBerger

That would be expensive I’m the grand scheme since the fork is carbon on mine I’m sure.

StuBerger

That’s what I’m trying to get use to.. I can’t post pics yet so....

StuBerger

Here’s my FXS5

fietsbob

steerer carbon or metal? carbon blades does not mean a carbon steerer...









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TakingMyTime

Stu,

Since you're just starting out again you're going to need to stick with what is comfortable to you. Personally, I do not like the look of those extensions. You could probably get somewhat close to the same height without the extension and installing a stem that has a greater angle to it.

StuBerger

I think the stem I got on now is Bontragers most angled stem unless I’d go with another brand. The LBS was goin to install an adjustable stem but it didn’t have the top mount for the computer like the Bontrager does Mad I like the computer dead center on top....OCD I guess. If I went with one with a greater angle would that throw me off on how I sit on the bike like being further back?

StuBerger

[QUOTE=fietsbob;20952020]steerer carbon or metal? carbon blades does not mean a carbon steerer...


I’m taking it that the correct biking terminology for forks are blades? Haha.... I know the blades that come with the FXS5 is carbon and I didn’t know the blades and steerer tube is separate.

TakingMyTime

Some carbon forks are completely carbon which means the forks and the steerer tube are carbon. Then there are carbon forks with steel steerer tubes (like yours)..

Don't worry about the terminology too much. It will come to you with time.

https://en.wikipedia.org/wiki/Bicycle_fork

hokiefyd 

A stem of the same length, but a sharper angle, will raise the bar up and move it further rearward. You'd need a longer stem in order to compensate for that. How much of that you'd notice actually riding the bike is hard to say.

You already have a relatively long stem on it, and I doubt you can find a significantly longer one. Judging by the picture, you'd need a monster stem to have the bar in the same position as it is now, but without the steer tube extension. It'd need to have a 45 degree angle and be six or eight inches long!

If the steer tube extension works for you -- use it! Your bike looks great and I'm sure you'll find many happy miles out on the road with it. Enjoy!

StuBerger

I’m starting to think and worry I got the wrong bike and maybe something like a beach cruiser or like those Townies...

fietsbob

[QUOTE=StuBerger;20952339]
metal (aluminum assumed) is bonded to a fork crown within the forks carbon structure , or the whole thing is a carbon fiber composite
steerer if carnon as well


since you're here : consider a frequency you want to replace your carbon bikes .

Pros it's a couple races or at least new bike & spares every year..



https://www.outsideonline.com/231181...dents-lawsuits

StuBerger

[QUOTE=fietsbob;20952665]If I just spent close to 1800.00 stock on this bike and I have to replace it because of the carbon fiber frame or forks go I’m suing...

fietsbob

It's Litigious country, you'll fit right in.. start building your case now.. collecting evidence..

retain counsel ..

DSL6

That FX looks great! The extender doesn't look too bad. I'm like you. I like my bar higher. Bike makers think that all performance bikes have to have low handlebars. I disagree. I want mine higher than the saddle. Or, at least level with it. I might have to use an adjustable stem on the new 4 like I have on the 8.2 That will make the heights fairly even. I wish I could get a DS with a 25" XXL frame. Then, I wouldn't have to jack the seat up so much.


Side note:
LOL This forum won't even let me quote with a picture yet. Hopefully, I'll get pictures of my bikes up soon. I would have also posted pics of my headset work on another thread but, no go.

StuBerger

Yeah, I had to wait till 10 posts to finally post pictures.. see yours soon!

DSL6

I put this adjustable on my 8.2. Brought it up and closer nicely.


And, I had this stem from my old FX. It brought the DS 4 bars up and back some. If it's not enough, I'll do the adjustment stem.