2024 txt bike reach?

[ntino]

Just got a new Gasgas, coming from a 23 sherco, I had an opportunity of a really good deal on a brand new Gasgas so I want to try that and sell whichever one I like riding less. 

The gasgas is so much longer than the sherco, the reach seems quite a bit longer. For guys that have ridden a bunch of different trials bikes, you guys find that? How did you adjust?

 

[lemur]

Reach implies arm position so height and position of your bars is where you would adjust for reach, a set of taller bars aka 'indoor bars' is a good investment and will fit both bikes, had them on one of 2 rides and it makes a surprising difference in leverage and riding position.

[konrad]

I agree with lemur.  But in addition, just rotating the bars fore/aft can have a big effect.  A set of “bar risers” is also a possibility. 

[ntino]

well, I guess I should say that I like having the bars somewhat a bit forward of neutral as it helps with leverage over front end... bar risers and taller bars generally shift the leverage point/. Also 23+ the gasgas comes with pretty tall bars as they triple clamp height and mount is somewhat lower that what you usually see on trials.

I should clarify a bit - I guess I was inquiring moreso to the overall impression of others of this 23+ gasgas as compared to other brands - the wheelbase is longer for the bike than a couple of other trials bikes I have been on and by extension the reach is longer - swingarm to pegs seems the same as most trials bikes (about 40cm iirc)

[konrad]

25 minutes ago, ntino said:

.. the wheelbase is longer for the bike than a couple of other trials bikes I have been on.... 

How much longer is the wheelbase?

EDIT: I just read this in the 2023 TXT owner's manual: Wheelbase 1,320 ± 10 mm (51.97 ± 0.39 in)

Edited yesterday at 04:12 PM by konrad

[konrad]

I have not yet watched this 50-minute video on trials bike chassis geometry, but at about 4.5 minutes he touches on the 2023 GasGas versus Sherco.

https://youtu.be/skK-R6nT4eM

 

After watching as much of this as I can stand (about 30 minutes) I'll throw out the following for your consideration:

1. The analysis is made in real time.  I would have preferred it be made off-line and just the findings reported. 

2. The analysis assumes perfect scaling of the photos.  Although the scaling may be “good”, sometimes you are looking for subtle differences between the bikes.

3. The reviewer is a big guy (250 pounds = 113 kilograms) and I expect this skews his riding impressions.

4. Similarly, the reviewer seems like more a trail rider than a competition rider. 

 

I think a better method would be to take the same photos and use a free photogrammetry tool like https://eleif.net/photomeasure

That, and a known wheelbase, would allow you to make comparative measurements of various points on the bikes and enter all the data into a spreadsheet. 

Edited 20 hours ago by konrad

[arnoux]

[arnoux]

[konrad]

Forgot to mention something very important.  The amount of preload on the suspension springs affects the unladen sag.  This can change some dimensions noticeably. 

When I use photogrammetry for such measurements, I make sure the suspension is topped out at both ends.  This obviously does not represent real world conditions, but it makes for consistent measurements between bikes.

[ntino]

Well I don't know about the 1cm difference, but the gasgas feels like a much bigger bike, I have both bikes.

Rake, head angle etc will effect reach. I guess my question was only aimed at people that have first hand experience with the new 23+ gasgas vs other bikes as I initially asked, no real reason to analyze dimensions too much - Like I dont know why link a long video that analyzes pictures (obviously those bikes will have different sag in whatever pics he grabbed) thats talking about a 2020 gasgas/sherco etc,  when clearly I have a different generation of this bike.

I appreciate trying to help but this isnt helping