What is the chain ring? May have altered the chainline
Decathlon STILUS Full Suspension Electric Mountain Bike - SRAM SX
- Thread starter johnm
- Start date
moonhead911
New Member
And this is the original witch is off set a few mm
Johnny rider
Active member
It’s the Bosch spider he is using I’ve got the same issue but making a spacer up
Jamze
Well-known member
Just googled that part number - it's non-Boost. Do they do a Boost one? FSA do I think.
chain line : Standard chain line (non Boost), optimized for Bosch BDU4XX drives
Last edited:
Johnny rider
Active member
Very hard to find bud
Johnny rider
Active member
I’ve added 3mm space to the chainring and that’s the clearance on the rear tyre 2.8 wide
I’m making a spacer to fit on the shaft of the motor and remove the 3mm spacers on the chainring hopefully that will work
I’m making a spacer to fit on the shaft of the motor and remove the 3mm spacers on the chainring hopefully that will work
Chainring offset was my thought too. Not had time to get into the exact specs but Superstar are decent for upgrades. Might find something suitable there.
www.superstarcomponents.com
Narrow Wide Rings - ROUND - Superstar Components
Narrow Wide Rings - ROUND
Johnny rider
Active member
FSA Bosch E-Bike Spider - Out of Stock | Tredz Bikes
FSA Bosch E-Bike Spider. Out of Stock. All E-Bike Chainrings are delivered free to the UK mainland*, 365 day returns & Price Match.
www.tredz.co.uk
Johnny rider
Active member
That looks a better option bud
moonhead911
New Member
What's the difference between boost and normal
Jamze
Well-known member
Your front and rear hubs are wider (110mm and 148mm). Consequently, the drivetrain is shifted outwards, which means your chainring should also sit further out. My understanding, anyway ? Non-boost is 100mm front and 142mm rear. So you either need Boost components, or will need to adjust with spacers.
Tallguy888
Member
Hi, notice you have the same Bosch spider as me, which is the normal chain line of 50mm we both need the boost version that gives us 53mm,only stock I can find is in Italy ?
moonhead911
New Member
Looks like me and Jonny bought the last uk stock
Tallguy888
Member
Bugger ?
Tallguy888
Member
Could you confirm which one you purchased so I don’t waste my cash, many thanks Del
moonhead911
New Member
Tallguy888
Member
Great, much appreciated ?
Johnny rider
Active member
You might have to order from fsa like I did can’t get it anywhere else
Tallguy888
Member
I just found one on eBay from Italy, was £8 more than UK so not too bad..should arrive before Xmas ?
Tallguy888
Member
i didn’t even think about ordering it direct ?
Johnny rider
Active member
£40 delivered from fsa
Tallguy888
Member
And much quicker than Italy will be, ah well gives me something to look forward too I guess...
Johnny rider
Active member
Not sure where it’s coming from was €43 in all bud
Tallguy888
Member
Worked out £44 from Italy, probably be a week or two delivery, bike rides fine so not a problem waiting I don’t think..be interesting to see how much extra gap I get from tyre to chain and if it shifts smoother because it’s pretty good anyway.
Johnny rider
Active member
I’m only getting it so I can use my own chainring can swap out easy then
Tallguy888
Member
Like wise, also the one that was on the bike was pretty heavy.
Johnny rider
Active member
Yes i found that out the other day it weighs a ton lol
Buzz720
Member
Has anyone put 27.5 2.8 inch tires on it?
Johnny rider
Active member
Yes e wilds 2.8
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