Straightening a wheel....

Beatn1K

Active member
Jan 25, 2020
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49
UK
Perhaps I need to post this in the Newbie thread, as I feel like its probably where I should be...!
..but here's the thing!
I recently picked up a buckle in my rear wheel. It's a DT Swiss 27.5, as fitted as standard on my Merida e160 900e (2019). It was annoying me once I realised it was there..which wasnt until I went out to ride some taramac betwwen sections locally.
So I resolved to have a fiddle with the spoke tension and such. I thought id made a significant impression on the degree to which the rim lurched over evevry revolution. Riding it, it is much better but still annoys me...!
Do I just suck it up ? How do you cyclists get your kinks out..? :D
Perhaps it's worth taking apart and straightening the metal hoop and the relacing it..? It's not for fun though...
They arent cheap so buying new isnt really practical. Its got <1K miles on it...hence the notion I need to just suck it up...? ( I dont notice on the trail..)
I suspect its too much to use spoke tension alone but Im no expert TBH - plus i worry that I am loading the spokes unevenly and setting myself for catastrophic wheel collapse...?
I am a newbie to this Bicycle stuff. I am constantly remarking on how 'fine' its all been engineered...everything wittled down to the smallest,lightest "waffer" thin dimensions...A new wheel will do the same thing again wont it ?
 

Beatn1K

Active member
Jan 25, 2020
120
49
UK
A lot of dry wheel building info for the nerd....cheers....!

Having worked on "bruised" MX rims any number of times...a slightly different issue, granted, I know that the rims are extremely resistant to being pressed back into shape...

Looking online- maybe a replacement rim, new spokes and nipples is the way to go..
Realising that you probably cant fully compensate for a bent hoop with truing alone...!

Anyone kow what the rim type Id want for merida..?
Maybe I could try this sucker...? DT Swiss HX 581 27.5" Hybrid Disc Rim | Rims 27,5" Shop
although, honestly, it looks like this one will have more strength in it if the weight rating is anything... DT Swiss HX 531 27.5" Hybrid Disc Rim | Rims 27,5" Shop




Also- what do they mean by "incl : PHR washer and DT Pro Lock Squorx Pro Head nipple" ..?

cheers
 
Last edited:

Gary

Old Tartan Bollocks
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If the actual rim is bent you'll never make it true again without having uneven spoke tension.
This at best means a weak wheel. At worst a dangerous wheel.
You're actually best truing to even tension and living with the bend.
But you really need to replace the rim.
 

Gary

Old Tartan Bollocks
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A nipple washer is just that. A washer that sits below the nipple. Not all rims require them. And even then they're not always essential.
Squorx nipples have a specially shaped pretusion at the bottom and can be turned from underneath the rim with a Squorx niple driver.

squorx-nipple-individual-1__55427.1565824894.jpg

dt-swiss-nipple-key-torx-for-squorx-nipples-black~2.jpg
 
Last edited:

Gary

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You need a replacement rim with similar ERD measurement to the original if rebuilding with the same spokes
 

Beatn1K

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Jan 25, 2020
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UK
Expensive toys these ebikes...! I agree with you.
I needed it confirmed really....
 

Gary

Old Tartan Bollocks
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not really.

you can buy a rim for as little £25 and re-use your original spokes/nipples
 

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