Old 09-25-21, 12:23 PM
  #7  
sjanzeir
Keeling over.
 
Join Date: Apr 2016
Location: Jeddah, Saudi Arabia
Posts: 1,217

Bikes: 1990 Raleigh Flyer (size 21"); 2014 Trek 7.6 FX (size 15"); 2014 Trek 7.6 FX (size 17.5"); 2019 Dahon Mu D9; 2020 Dahon Hemingway D9

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 588 Post(s)
Liked 1,162 Times in 367 Posts
Originally Posted by tomtomtom123 View Post
With the tern Andros adapter, you can quickly rotate the handle to the vertical position when folding. But you still need a T post. The Andros has something like double the offset/length. I use it on my dahon to bring the reach further rearward. I have a seatpost with a 2cm rear offset but the brooks saddle is much further forward than most seats and I still need another 1 to 2cm rear offset to get it in the optimal position.
A zero-offset Litepro solved that particular problem for me.

When I first got my Hemingway late last year,
I was kind of disappointed with the way it handled, especially compared to my Mu D9's neutral, tossable nature. Whereas you could pretty much point the Mu where you want it to go and just go for it, throwing it into almost any corner at any speed, the Hemingway's front end felt fluffy and light, which isn't at all what I would call confidence-inspiring.

Even when I clamped it down all the way forward, with the rails pushed right against the seatpost bracket, the tip of the Hemingway's saddle was still about 18mm or so farther back from the handlebars than where it was on my current Mu D9 (both the Hemingway and the Mu have identical saddles; I even swapped them over to make sure that what I was seeing was accurate.)

So I started taking measurements of both frames - the Mu and the Hemingway. As it turns out, both frames are more or less identical in all but two parameters: head tube length and effective seat tube angle. At 100mm, the Mu's headtube was 15mm taller than the Hemingway's 85mm headtube. Correspondingly, that put the Mu's handlebars 15mm higher off of the front axle than the Hemingway's - which I found somewhat surprising given the Mu's more "roady" nature, as opposed to the somewhat more "MTB-ish" Hemingway.

Obviously, the Hemingway's slacker effective seat tube angle (by about one degree, as measured with a protractor app on the seatposts of both bikes, parked over the same two floor tiles, with both tires on the ground,) was responsible for the saddle being set back farther than it is on the Mu.

So, in order to get the Hemingway to handle as sweetly as the Mu, I needed a way to get my ass (and, thus, my body mass) a little closer to the middle of the wheelbase, similar to where it would be on the Mu, effectively steepening the seat tube angle.

To achieve this, I had to swap out the factory 20mm-offset seatpost for a zero-offset one, which apparently only Litepro sold. After set the saddle in where I wanted it and clamped everything down, I went for a ride, and wow! It was as though I had just bought me a new Hemingway! The bike's ride, handling, and overall fun factor were orders of magnitude better than they were the day I took it home. It's still not exactly like the Mu (nor did I expect the experience to be replicated, what with the different tires and all,) but the change made the difference between a bike I didn't want to ride anymore (and which I had up for sale for a while,) and one I now look forward to hopping onto every day.
sjanzeir is offline