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Magura Forged IS Frame/Fork to Post Mount Caliper Adaptor

Product code: 12169

$10.80

In stock

Magura Forged IS Frame/Fork to Post Mount Caliper Adaptor

QM12 - Front 180mm / Rear 160mm
QM41 - Front 200mm / Rear 180mm
QM5 - Front 203mm
QM9 - Rear 203mm

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Please check the disc mount position on your frame or fork before ordering this item! Many trials frames and forks have their mounts in a 'plus' position as standard, meaning you may require a different adaptor than initially expected.

- As supplied with their disc brakes, forged IS Frame/Fork to Post Mount Caliper disc brake adaptors from Magura.
- When combined with a new rotor, they're a great way to improve the performance of your brakes!
- Available in a range of sizes to suit different setups:
QM12 - Front 180mm/Rear 160mm
QM10 & QM41 - Rear 180mm
QM5 - Front 203mm
QM9 - Rear 203mm
- Please note that all of the above rotor sizes are for International Standard brake mounts. Some frames or forks have the mount at a different position, such as +20 on the rear of many Inspired frames, so you will need a different adaptor in this case. If you aren't sure which one you need, please feel free to contact us for advice.
- Supplied with fitting bolts and washers (may be black or silver).
- Sold individually, in Black only.
- Weights: QM12 - 19.9g. QM41 - 24.5g. QM5 - 25.6g. QM9 - 38.4g. Bolts and washers: 12.2g.

Questions

Richard Lawson

Hi, I have an old Planet X Ali bongo with IS rear disc mount. Which rear mount will I need to run an MT7 with 203 storm rotor? Take it where the frames old school itís not +20 or anything like that? Kind regards

Posted by Richard Lawson

Reply from TartyBikes

Hi Richard!
We believe the Ali-Bongo uses a standard IS disc mount on the rear, so you would need the QM9 for that setup.
It is also possible to use the Hope IS Frame/Fork to Post Mount Caliper adaptor in Adaptor G size. This isn't one we hold in stock ordinarily, but we can order one in for you if you like. If you'd like to go down this route, please e-mail us and we can get the ball rolling.

Nico

What Adapter i need for my inspired fourplay 2019, when i ride 203mm Disc? Thanks, Nico

Posted by Nico

Reply from TartyBikes

Hi Nico!
If you're using a Fourplay frame and fork, you'd need to use the QM5 Front 203mm adaptor front and rear. The Fourplay frame has a +20mm disc mount which means you need to use the same adaptor on the rear that you would on the front.
If you have any more questions, feel free to ask.

Gav

Hi just reading these comments, and noticed the mention of the maximum rotor size on the Onza Zoot Pro, is the recommendation the same for the regular Onza Zoot? Looking to put double discs on mine (MT5ís) but gather they wonít fit a 160mm rotor set up? So would a 180mm or. 203mm rotor on the rear be okay?

Posted by Gav

Reply from TartyBikes

Hi Gav!
Our recommendation for rotor size is the same for the Zoot and the Zoot Pro. Essentially, the disc mount on the Onza 24" frames wasn't reinforced, so using a disc brake tends to kill the frame fairly quickly. The larger the rotor size the more leverage is put through the mount, which is why we recommended a 160mm at a maximum.
If you are particularly set on using the MT5s on your Zoot, as they're not compatible with 160mm IS mount adaptors, we would recommend sticking with 180mm as this will cause the least stress on your frame.

Chris

Hi I am building a street trials bike from an old NS suburban frame 2009 (I will change the frame at a later date) but I want to run big rotors (200mm) front and back brakes avid bb7 mechanical brakes could you help me out with what adaptors would fit Thank you

Posted by Chris

Reply from TartyBikes

Hi Chris!
We don't have much experience with that frame so couldn't say for sure, but from looking at photos it appears to have a regular IS rear mount so the closest Magura adaptor to what you need would be the QM9. Assuming your forks have a standard front IS mount too, you would need the QM5 for the front.
The only thing to be aware of is that from customer experience, fitting a disc brake with large rotor to a dirt jump/street style frame and riding trials tends to break the frame fairly quickly. The rear disc mounts don't tend to be particularly well reinforced (as they don't need to be for dirt jumping/street), whereas if you look at most of the street trials frames we sell they tend to have chunkier mounts and a brace in the frame too. Without it, there is a lot of force (especially with 200mm rotors) going through the frame without anything to help dissipate it. While you're using this frame it may be worth sticking to a smaller rotor size.
Hopefully this helps - if you have any more questions, feel free to ask.

Sam

Hi, I have a YT capra with a Yari fork. Current brakes are sram with 200mm rotors (+40 and +20 adapters). I've bought the magura trail sport with 203mm rotors. Can you confirm which adapters for me please? Thanks Sam

Posted by Sam

Reply from TartyBikes

Hi Sam!
From a bit of research it appears that all the YT Capra and RockShox Yari forks require a Post Mount to Post Mount adaptor. The Post to Post Adaptors we have in stock are all either +20mm or +40mm, so to run a 203mm rotor you would need to use 1.5mm of spacers between your caliper and adaptor. As a result, our Hope Adaptors would work (simply use the same +20mm and +40mm combination that was suitable for your SRAM brakes), with some additional Hope Caliper Shims for the extra clearance required for the larger rotor.
Hopefully this helps - if you have any more questions, feel free to ask.

Peter Norman

I'd like to put 180 rotors front and rear on my Onza Zoot Pro. Which adapters will I need? Cheers

Posted by Peter Norman

Reply from TartyBikes

Hi Peter!
The Zoot Pro frame has regular IS disc mount positioning, so you would just need the specified Front 180mm and Rear 180mm adaptors (rather than having to use two Front 180mm adaptors if you had a +20mm frame mount).
This means you'd need the QM12 and QM41 adaptors.
The only thing to note is that we typically don't recommend over a 160mm rear rotor on the Zoot Pro due to the IS positioned disc mount and lack of reinforcement. You may get away with a 180mm rotor, but we strongly advise to not go any bigger than that.

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