Trek rail 9.8 first ebike on its way advise needed please

Dano78

Member
Dec 3, 2019
162
34
Uk
I'm picking up my first ebike trek rail 9.8 large and was wondering what people do to maintain them I've ordered shorter hope 155mm crank arms as I'm going to run 27.5x2.8 tryes with it also and advice would be appreciated thanks
 

Gazzaaitken

Active member
Nov 7, 2019
122
144
Scotland
I'm picking up my first ebike trek rail 9.8 large and was wondering what people do to maintain them I've ordered shorter hope 155mm crank arms as I'm going to run 27.5x2.8 tryes with it also and advice would be appreciated thanks
Buy an extra chain and swap them round every couple of rides, keep the chain pukka clean
 

Dano78

Member
Dec 3, 2019
162
34
Uk
Interested in why you're swapping to 27.5.
I love the plus tryes when I go to trail centres so much grip and with a cushcore installed and eddy current tryes with thick casings dont think I'll be getting any flats , and when I do off piste stuff up cannock chase ill swap back to 29er wheels
 

Rawry

Active member
Nov 27, 2018
147
78
Cleveland
I have stuck with the 29 x2.5 shorty on mine and find the grip and side walls first class. I had a Giant sx 0 pro with 27.5 x2.8 and i prefer the 29ers
 

Arcadyus

New Member
May 19, 2020
20
11
WA
155 are too short. I've been told your motor will have to be retuned for anything shorter than 160mm.
 

Arcadyus

New Member
May 19, 2020
20
11
WA
For maintaining there are a few things I've noticed. You can spray away and not worry about shit. They seem very water resistant. The chain and cassette get way dirtier than a normal bike. You will want to move your mino link to the high position when going to a 27.5. Will give you 6-8mm more of BB clearance.
 

Doomanic

🛠️Wrecker🛠️
Patreon
Founding Member
Jan 21, 2018
8,478
9,957
UK
You will want to move your mino link to the high position when going to a 27.5. Will give you 6-8mm more of BB clearance.

But also steepen the head angle if using 27.5 at both ends. Really, you want longer forks to compensate for the smaller diameter front wheel.
 

Doug Stampfer

Well-known member
Jul 7, 2018
736
752
NZ
Just out of interest if you are changing the wheels, forks etc how did you arrive at the Rail as a bike choice? There would have been many 27'5 bosch powered bikes already set up similar?
 

Dano78

Member
Dec 3, 2019
162
34
Uk
Just out of interest if you are changing the wheels, forks etc how did you arrive at the Rail as a bike choice? There would have been many 27'5 bosch powered bikes already set up similar?
I'm only changing it to 27.5x2.8 every now and then , maybe when I go to trail centres and will switch back to 29ers when I go off piste best of both worlds I think
 

Manicm

Member
Apr 23, 2020
36
3
Birmingham
I run a plus stumpy and have a fuse, tbh I wouldn’t change my rail to plus, it’s such a different beast due to the weight it’s more planted and has tons of grip, might just be me but I definitely prefer the 29er even the bonty tyres are pretty good round Cannock.
 

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