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Strida EVO 3 Speed Wrench

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Strida EVO 3 Speed Wrench

Postby atletasp on Sun Aug 02, 2015 11:34 am

Strida EVO 3 Speed
I need to adjust the tension belt.
Where can I get online a good pro quality Wrench to release the KS3 Internal Lockring sales Nº HSA835.
It requires hight torque 60 Nm. I believe a "C" spanner can't manage this torque without
damage the Lockring tooth. What is the solution adopted by the dealers to do this job.
In my country we don`t have authorized shops.
The price is not a problem, I want a professional good quality wrench.
Can`t find any option on web. Links are welcome.
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Re: Strida EVO 3 Speed Wrench

Postby Blackstridaaustria on Sun Aug 02, 2015 2:28 pm

Theoretically you could use a common hook spanner (or C-spanner) in size Ø 96 mm or an adjustable one with matching range.
Unfortunately, perhaps you noticed already, do the "noses" of usual spanners not fit the narrow grooves of HSA 835.

You can:
- Modify a common key (Most likely the cheaper and faster solution.)
- Order original tools (If possible via a local bike dealer.)

For original tools - Ming is using a special hook spanner for this purpose;
its unusual feature is a 1/2" square hole close to the key's mouth.
You're surely suspected already correct - yes, the hole was added for a torque key.
(Just don't forget to calculate the new torque - force is out of centre :wink: )
According to my infos should Strida distributors be able to order tools;
if there is nobody (willing?) in your country please ask at the next one.

Recently I've ordered these; couldn't find a combination of both.
They do not fit as they are, was too lazy to grind them by now :oops:
(Joint) Hook key 60-90mm
(Joint) Hook key 1/2" 60-90mm

Keys are not recommendable, there is a lot to grind! :oops:

"Who knows nothing, must believe all." *

[* line from "Aphorismen"; Marie von Ebner-Eschenbach, Austrian poet, 1893]
[* book title; Werner Gruber, Austrian physicist, 2010]
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