Having just put some Magura Storm HC Rotors on my new bike I thought I'd also replace the quite worn rotors on my other bike, but they appear to only come in 203mm and I'm currently running 200mm.
I'm using the type of adapters that don't have the cone spacers under them so I don't think they can be spaced properly for a 203mm rotor, or can they?
Any other options for a decent rotor in 200mm flavour that's 2mm thick? The Maguras are on sale at £20 so even with new adapters will be cheap enough, but I don't really want yet another pair of adapters sitting in my "just in case" drawer.
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1.5mm washers and longer bolts. Shimano and Magura both sell kits for this.
https://www.biketart.com/products/shimano-200-to-203mm-disc-brake-adapter-for-post-mount-calliper
https://thelostco.com/products/magura-qm1-5-disc-brake-adaptor-1-5mm-for-pm-200-203
A couple of 1.5mm washer between the caliper and adapter normally works. They are not radial mount but its normally close enough.
Shimano sell bolts and washers for £13.99 for 200-203 for direct mount 200.
£13.99 for 2 washers (and bolts that you already have)? Thats f*** -me steep even taking "bike tax" into account. I'd either get the correct mount, or nip to Screwfix/Toolstation for a pack of washers.
The links above are £7 and £5.
Yep. 1.5mm washers between caliper and adaptor mount. Hope shim washers are useful - varying thickness
If the rotor isn't fouling the caliper, it's not a critical thing. Check that the pads are fully contacting the rotor and shim as needed.
Even at £7 & £5, it's ridiculously expensive for 2 bolts & washers when you consider how much places like Screwfix charge. We're being taken for mugs.
No idea where you lot get your prices from.
Use Hope shims. Pack of 10 = £1.50(0.8mm) And use the same bolts, they are plenty long.
https://www.wiggle.co.uk/hope-disc-brake-caliper-shims?lang=en&curr=GBP&dest=1&sku=6305&utm_source=google&utm_term=&utm_campaign=&utm_medium=base&gclid=EAIaIQobChMI25SqoquY_gIVBe_tCh2_0wMmEAQYAiABEgIBsfD_BwE&gclsrc=aw.ds
Cheers all, I’ll give it a try with washers and see how it goes.
If it’s a failure I’ll change the adapters 👍
