Decathlon rockrider est900

Bus biker55

Pedelecer
Dec 29, 2019
37
57
53
Tyne and Wear
Hi all,
I have been offered a decathlon mountain bike at a really good price. How easy would it be to convert this into a more commuter friendly spec (mudguards rack etc). Does anyone out there use a mountain bike for this purpose?
 

Woosh

Trade Member
May 19, 2012
15,475
13,136
Southend on Sea
wooshbikes.co.uk
You need to check the chainring. This is because a crank drive kit would only fit a bike with at least 42T ring or larger.
Your RockRider ST900 may have the small 32T ring. If it's the case, you won't be able to fit the BBS01 or TSDZ2 kits. They will foul against the right chainstay.
If you go for a rear wheel conversion, you have have fewer choices in 17.5" rims.
 

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