Rockrider E-st 900 changes upgrades

[E-MAD MALC]

Picking mine up tomorrow and returning the somewhat lacking E-ST 500.
Payin €2199.00

I still recon good value bike
Like many on here it's been upgraded over the past year and half

 

[El Grifo]

The 500 or the 900 ?

 

[E-MAD MALC]

The 500 or the 900 ?

900
It was pandemic time when I purchased it
They only had 500 in stock at the time in the UK so I purchased one, I kept looking on the Web site once I had the bike and would you believe it the 900 come in stock two weeks further on so I got in touch with Decathlon and said I really wanted the 900 they said no problem
Ordered the 900 in the shop and they took the 500 back
Nice one

 

[El Grifo]

900
It was pandemic time when I purchased it
They only had 500 in stock at the time in the UK so I purchased one, I kept looking on the Web site once I had the bike and would you believe it the 900 come in stock two weeks further on so I got in touch with Decathlon and said I really wanted the 900 they said no problem
Ordered the 900 in the shop and they took the 500 back
Nice one

Almost the same here.
The 900 felt a little outwith my price range, but owing to the 2 months no quibble return policy of Decathalon Spain, I reckoned to start with the 500.
Do not get me wrong, the 500 is an OK bike, I was starting to love it.
Prob is I am 72 and although the 500 just about works for me now, how is it going to be in a couple of years ??
I returned it in favour of the 70Nm Brose T hoping that might help my riding longevity

Wish me luck

 

[E-MAD MALC]

Almost the same here.
The 900 felt a little outwith my price range, but owing to the 2 months no quibble return policy of Decathalon Spain, I reckoned to start with the 500.
Do not get me wrong, the 500 is an OK bike, I was starting to love it.
Prob is I am 72 and although the 500 just about works for me now, how is it going to be in a couple of years ??
I returned it in favour of the 70Nm Brose T hoping that might help my riding longevity

Wish me luck

Your not alone I'm only a year behind you

 

[BeBiker]

I hear from most other owners that the e-st900 is really good.
It doesn't have fancy features like remote 12 speed, 4-pot brakes etcetera, but a very decent basic bike.

When trying to shave off some hundreds of euros, you end up with the "Ok-ish" 520 and 500, or with the e-st100 which is a complete disaster.

Do you plan to do some changes? Dropper post, tyres, riser steering bar, gears ?

 

[El Grifo]

another day, another Aliexpress "present"

Page Not Found - Aliexpress.com

View attachment 40475

I'm in between bike sizes, and my bike is a L, with a 80mm stem.
View attachment 40477

That's a lot better !
View attachment 40476

 

[BeBiker]

I found this on the UK site, but not on the BE site:

MTB Parts | Mountain Bike Spares & Replacements | Decathlon

Explore Decathlon's full range of MTB parts from seats & pedals to shocks & clamps. We have everything you need to upgrade, update or fix your bike.…

www.decathlon.co.uk

I hope the helpdesk provides me a solution

 

[El Grifo]

I hear from most other owners that the e-st900 is really good.
It doesn't have fancy features like remote 12 speed, 4-pot brakes etcetera, but a very decent basic bike.

When trying to shave off some hundreds of euros, you end up with the "Ok-ish" 520 and 500, or with the e-st100 which is a complete disaster.

Do you plan to do some changes? Dropper post, tyres, riser steering bar, gears ?

Only planned changes are one of those Suntour ncx or whatever suspension posts with a more comfortable saddle and a 38t chainring.
No doubt after the first few rides there will be more !

 

[El Grifo]

Been a couple of weeks now since I picked op the 900. Decathalon accepted the return of the 500 with barely a look and the money was refunded to my account the same day. Excellent service !
The only Mods I have done so far really are to replace the normal head to a raised version to suit my somewhat elderly situation.
The second being the fitting of the excellent Suntour NCX saddle suspension device.
My riding style although not Dick Danger ( or at my time of life, not even Danger Dick these days) is still quite sporty.
Did 28k yesterday over some rugged terrain and the suspension unit performed beautifully.

Best money spent so far !!

Trying to source a 38T Chainring now.

Ignore the lousy phone mount. Work in progress

 

[El Grifo]

At it again !!!

This is sure to pixx off the purists !!
Fitted similar to my old Muddy Fox over 35 years ago and found the great when returning from a pretty heavy ride out.

Real relaxing just to cruise along in the breeze, with an almost straight back when the traffic on the Road or Cycle Path is quiet.
If I like them, then they remain. If not, it is only a case of 2 Allen Bolts !!

End Plugs not yet fitted until trial period is over.

Prob go for a better set of handgrips as well. Had to butcher the originals.

El G.

 

[BeBiker]

Promo time.
Over the years the bike costed 2000 euro -> 2200 euro.

Back to 2000 euro now:

Elektrische Mountainbikes | DECATHLON

Op zoek naar een nieuwe fiets, en meerbepaald een elektrische mountainbike? Ontdek onze uitgebreide collectie!

www.decathlon.be

 

[eduardve]

This is a picture of the bike with rain fenders installed.
I had to drill a 5mm hole in the front fork, then tapped M6 in it.

In the back there was the possibility to mount the fender support directly.

This is the reference to the fenders. the normal size.

SKS Beavertail Front & Rear Mudguard Set

Technical Information: Application: MTB, All-road, Road Compatibility: 26" and 28" wheels Features: All-round plug-in bike protector innovative design optimum splash protection also suitable for suspension forks robust steel brackets for safe and e

www.bike-components.de

They are narrower than the 27.5-2.8 tires, but as these tires are "bombed", the fenders keep away 90% of the rain.

It was the only model that was:
-quick click remove
-budget
-good close following of the tire
-not too much destroying the looks, no side supports etc.

View attachment 38983

View attachment 38999

Hi,
how did the fenders last over time? I am thinking of buying this model as well but I'm not sure if I will be able to fix the fender for the front wheel in order to keep it steady. Could you post a picture of the setup detail please? Thank you!

 

[DT36]

Have you considered a tie on front mudguard?
I have had a Zefal fitted for over 2 years now and it's been absolutely perfect. Very easy to fit. Would recommend
See the back spray/mud on my frame, which was from a very wet and muddy trail this weekend.
When I didn't have the mudguard fitted I found a lot of the spray was coming up onto my face. Now it doesn't.

 

[eduardve]

Looks interesting, thank you!

 

[DT36]

Looks interesting, thank you!

Zefal Deflector FM30 Front Mudguard | Tredz Bikes

Save 20% - Zefal Deflector FM30 Front Mudguard £11.99 or available with 0% APR finance on baskets over £99. All Front mudguards are delivered free to the UK mainland*, 365 day returns & Price Match. Buy Now.

www.tredz.co.uk

 

[BeBiker]

Hi,
how did the fenders last over time? I am thinking of buying this model as well but I'm not sure if I will be able to fix the fender for the front wheel in order to keep it steady. Could you post a picture of the setup detail please? Thank you!

Still Ok, still as new.

The mounting is a metal bracket with one bolt.
At the back there is already a hole, in the front you will have to drill/tap a hole

 

[El Grifo]

I see you opted for this Very first mod ever did to my beloved 900

 

[DT36]

I see you opted for this Very first mod ever did to my beloved 900

View attachment 125097

Been a good addition in fairness, as the regular trail I ride has a good few tree roots breaking through the asphalt.

 

[eduardve]

Still Ok, still as new.

The mounting is a metal bracket with one bolt.
At the back there is already a hole, in the front you will have to drill/tap a hole

In the front did you full drilled thru the middle triangle? (it seems no so thick)

 

[Goat]

Personally I wouldn't drill a hole in the fork arch, if that's what you are considering!

 

[BeBiker]

yes drilled 5mm tapped 6mm.
But I unserstand some classes of people are afraid of that.

 

[El Grifo]

Slightly off message but , has anyone used the Decathalon 6 month free service ?
If so, what does it consist off ?
Thanks.

 

[emanuele27]

I want to give credit to the contributor of this post.

In terms of lighting for electric bikes, here's the information:

FRONT 6V 1.1A (6.6W)

BACK 6V 0.1A (0.6W)

The best lighting options are:

FRONT: Lezyne E65 (210 Lumens - be careful not to get the "Pro" version) - 4.5W

BACK: LITEMOVE TS-RK - 0.5W

To achieve this, you'll need to purchase a Brose cable from Decathlon.

 

[emanresu]

Just installed the decathlon cable for a fork mount light at the front. Waiting for a clamp for the crown as don't want to drill.

Is this the light for the rear?

TS-RK Tail Light For Electric Bicycle – LITEMOVE

Litemove TS-RK bike light offers 240 degrees of light visibility, providing bikers an all-around light sphere that’s visible even from the back.

www.lite-move.com

 

[BeBiker]

Since a few weeks, the motor assembly started making a bit more noise.
When manually turning the pedals, I can feel it's not as smooth as used to be.

I guess there are belt/bearing problems.

Is this something I can fix myself?
How is Decthlon service and Price?
Are there shops specialized in this?

 

[RonnieX]

Since a few weeks, the motor assembly started making a bit more noise.
When manually turning the pedals, I can feel it's not as smooth as used to be.

I guess there are belt/bearing problems.

Is this something I can fix myself?
How is Decthlon service and Price?
Are there shops specialized in this?

If it's a serious motor problem, then These guys are the Brose experts.

 

[E-MAD MALC]

Since a few weeks, the motor assembly started making a bit more noise.
When manually turning the pedals, I can feel it's not as smooth as used to be.

I guess there are belt/bearing problems.

Is this something I can fix myself?
How is Decthlon service and Price?
Are there shops specialized in this?

This will give you an idea what it takes to replace the belt drive

 

[BeBiker]

The bike doesn't go ON anymore.
When opening the case, it's full of mud, the connectors are rotten agian.
By trying to disconnect, the power connector broke, pins broken off...

 

[BeBiker]

So we go to Decathlon. The message is:
*Connector broken on both sides, please look+repair.
*Motor makes noise, please make price for replacement of bearings+belt.

After a week there is a guy phoning me with a strange story, trying to sound technical.
Price for repair = 850 euro for new Motor + 50ish for new wiring.

So I go there, another guy tells another starnge story about short circuits, grease, circuits burned in the motor,...
But when I ask which measurements he made, and to show me where exactly it is burned, seems they didn't even open the motor, and didn't even measure something.
I told him what dielectric gel is, so at least he learnt something this year.

Avoid those guys at all cost. They are trained to fix bolts, know the catalogue and adjust derailleurs.