MTB Mods.

I’ve been mostly happy with my Specialized Epic Carbon 29er except for a few minor niggling things which I’ve corrected over the last year or so.

The stock Formula brakes were not great. Fortuitously I snapped one of the levers off in the first few months and rather than replace just the lever; I fitted Shimano XT brakes on front and rear – they have better stopping power, less fade and are infinitely adjustable. They also use mineral oil instead of the nasty Gycol-based stuff.

The Epic’s stock tires were clearly made for speed above all else – I was never comfortable with the grip at the front. While the bike was having some down-time due to the rear shock getting serviced I added a bit more volume – Maxxis Ikon 2.2 on the back; Maxxis High Roller II 2.3 on the front – the bigger front tire really makes a difference. For what it’s worth – you might just be able to go up to 2.3 on the back and 2.4 on the front . I also went tubeless – I don’t know why specialized fit tubeless rims and tires but also ship with inner tubes – I suspect tire sealant doesn’t travel well and gets a bit messy while in transit.

Another thing I found is that the design of the front QR through-axel means it quickly degrades if too tight to the point where its no longer able to function and you have to use a hex wrench – somewhat negating the idea of a quick release. So I replaced it with the non QR version – the Maxel.

Finally I used the same maintenance window to fit a dropper. Without manually dropping the seat-post – my saddle is constantly butting me in the arse mid-jump – making for exciting nose-down landings. I do realize the Epic is a pure-bred XC bike not a dirt jumper – maybe at some point I’ll buy myself an old beater for the jumps.

Getting the right dropper for an Epic Carbon was a challenge due to i) the 27.2mm seatpost and ii) the shape of the frame which severely limits travel.  The only dropper Specialized will recommend is the Command Post XCP 350mm – which is pricy and only has 3 cm of travel – that’s $15 per millimeter ! I tried the 500mm version but that rode way too high for me and would’ve resulted in a riser; not a dropper.  KS now do a 27.2mm internally-routed  dropper and that might have been a better option but hard to know if the bend in the Epic’s frame would’ve restricted travel. Seems to be a fair amount of trial and error with droppers. Either way, you’ll probably want to have your local bike shop fit it because the internal routing is pretty complicated; but in my opinion – well worth it.

So with these new mods in place I hit the backyard trails before dusk. Nice to have a working auto-sag again (the Specialized / Fox Brain really is a decent piece of engineering) and the front tire running about 30 PSI handled really well – feels a lot more confident.

I hit one of the jump-lines and felt much more in control – no saddle tipping me forward mid-air and the trigger is really smooth – feels natural already.

Feels great to have my bike back working better than ever –  now I’ve got to rack up some miles before it gets too hot and humid !

 

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s