Is it possible to fit a front 29er on the Fathom E+ 2019?

KuRi

Active member
May 30, 2019
376
185
Spain
Hi!

I was taking a look at my fork (Fathom E+ 2019) and it says that it is a 29' fork. Will this mean that I can fit a 29er at the front? I was thinking on 29 x 2,45. Will this make sense together with the 27,5 x 2,6 rear? What are your thoughts on advantages and disadvantages?

Thanks!!!

P.D: In case I want to try... can you please suggest a nice not too expensive 29 front wheel? Cheers!
 
Last edited:

04fuxake

Active member
Feb 12, 2018
321
205
Porirua, NZ
If it says it's a 29" fork then yes, it will fit a 29" wheel.

Did your Fathom E+ come stock with 27.5" or 29" wheels?
 

Dirtnvert

E*POWAH Elite World Champion
Sep 25, 2018
1,352
1,600
BC Canada
Definitely, adding a 29 wheel on the front, if your fork allows it, is a win win in my book. Slacken your bike about a half degree, front wheel doesnt get as hung up in holes or steep rollovers , more traction, more stability and carries a bit more speed and with the 27.5 rear you dont really lose any quickness in and out of turns and gives some extra breathing room for the twins.
You may want to slide your saddle ahead a bit to get that lost half a degree on the seat angle when you add the 29 front wheel but thats ez and souldnt need much of a move to get it back , if its even necessary
 

KuRi

Active member
May 30, 2019
376
185
Spain
Hi! In this pic you can see the 29 label and the current clearance. Mine came with 27.5 x 2.6 front and rear.
If it is definitely possible can you please recommend a tyre width and what kind of wheel should I buy? I am confused about inner size, axis, rims, materials, etc... xD

In a local shop there is a 29 boost Wheel with 15x110. Is that what I need?

thanks for your help!

8D2CE957-53AB-461C-85BB-0F5831F38EC5.jpeg
 
Last edited:

KuRi

Active member
May 30, 2019
376
185
Spain

Dirtnvert

E*POWAH Elite World Champion
Sep 25, 2018
1,352
1,600
BC Canada
Thats not a bad wheel. Most front hubs work fine. Its the crappy rear hubs that fail early . That rim is inexpensive but theyre pretty well built. Looks like its 30mm inner width so 2.4 or 2.5 front tire is a good choice.
51 mm is the fork offset. 44 or 51 are the options for your fork. 51 is a touch more stable at speed and 44 is more nimble stable at slower tech trails. I wouldnt worry about it
 

KuRi

Active member
May 30, 2019
376
185
Spain
Thats not a bad wheel. Most front hubs work fine. Its the crappy rear hubs that fail early . That rim is inexpensive but theyre pretty well built. Looks like its 30mm inner width so 2.4 or 2.5 front tire is a good choice.
51 mm is the fork offset. 44 or 51 are the options for your fork. 51 is a touch more stable at speed and 44 is more nimble stable at slower tech trails. I wouldnt worry about it
Thank you so much for your help
 

Dgedge

Member
May 20, 2020
94
50
France
Thats not a bad wheel. Most front hubs work fine. Its the crappy rear hubs that fail early . That rim is inexpensive but theyre pretty well built. Looks like its 30mm inner width so 2.4 or 2.5 front tire is a good choice.
51 mm is the fork offset. 44 or 51 are the options for your fork. 51 is a touch more stable at speed and 44 is more nimble stable at slower tech trails. I wouldnt worry about it
Are you sure about the offset ?
For me it is the opposite : 51mm is more agile than 44mm because long offset means short trail and reduced trail means more agile bike while longer trail means more stable.
But you're correct I wouldn't worry so much about it too.
 

KuRi

Active member
May 30, 2019
376
185
Spain
One last question please, do you think that a 29 x 2.4 will fit based on the clearance on my previous pic? Thanks
 

KuRi

Active member
May 30, 2019
376
185
Spain
If you have 29" fork, it takes at least 2.6
Yeah! I have just bought a 2.4 in a local shop and it seems to fit ok! (I don't have the wheel yet, I will get it in a couple of hours).

I think it is better to have the front 29 < 2.6 if I have a 27.5 x 2.6 in the rear, right?

Cheers!
 

Mcharza

E*POWAH BOSS
Aug 10, 2018
2,498
4,722
Helsinki, Finland
Yeah! I have just bought a 2.4 in a local shop and it seems to fit ok! (I don't have the wheel yet, I will get it in a couple of hours).

I think it is better to have the front 29 < 2.6 if I have a 27.5 x 2.6 in the rear, right?

Cheers!
Personally, I like to ride, front 29 "2.4 and rear 27.5" 2.6. But it is everyone's personal choice
 

KuRi

Active member
May 30, 2019
376
185
Spain
I just got the wheel and you were absolutely right... with the 29 x 2.35 maxxis forekaster I bought I still have clearance for more... I will try and if it rides nice I will try something bigger :D

I will post a picture once I finish the tubeless installation ;)

Thanks all!
 

TheLob

Member
May 23, 2020
35
29
Northern Ireland
Thought this might be of interest to you. I purchased this 2019 model in February this year. It was a demo model and the tyres had been changed to Continental X-King 2.2’s.
155924C1-A075-4B9D-911D-28678C110EFB.png
 

KuRi

Active member
May 30, 2019
376
185
Spain
Here are the pictures! I did not like the 2.35 front, so I swapped the tyre for a 2.5 (dhf) and it rides much better! So good I think now the rear (ardent race) is not the best companion for it :D

IMG_2249.jpg


IMG_2251.jpg
 

KuRi

Active member
May 30, 2019
376
185
Spain
No problems with the kickstand at all :D

I wonder if this setup is better than with 29's on both... Now I am tempted to try, because I have that 2.35 forekaster spare tyre to try on the rear. I also wonder how that will affect the speed calculations because you can't set up the wheel size on the giant motor, and that's a shame because if you want a good speed measurement you are tied to 27.5 x 2.6
 

KuRi

Active member
May 30, 2019
376
185
Spain
Hi! Additional question for my new setup ;)

With the new 29x2.50 wheels front and rear... I am guessing the speed indicator won't be correct... right? It will show less speed than current... so... will I get support for slightly faster speeds?

I have been trying to compare the speed that the controller shows to a gps one... but it is hard to notice because the gps has some lag.

Thanks!
 

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