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Trialtech Sport HD Front Disc

Product code: 12661


On order

Trialtech Sport HD Front Disc

- Heavy duty front disc hub from Trialtech!
- Featured as standard on some of Inspired's range of complete bikes.
- Tough cro-moly axle, for maximum strength, is compatible with almost all modern trials forks.
- An extra seal between the axle spacers and sealed cartridge bearings presents a very tough obstacle for dirt and water to pass.
- International standard 6-bolt disc brake mount.
- Serrated axle bolt washers really bite into forks to keep your wheel in place.
- Available in black, 32h drilling only.
- Weight: 253g (plus bolts and washers at 27g).

Hub Dimensions

Disc Side:
- Flange Diameter: 58mm
- Centre to Flange: 20mm

Non Disc Side:
- Flange Diameter: 58mm
- Centre to Flange: 35mm


Harry Bradbury

Hi, this hub came stock on my Inspired Element, and the bearings seem fine when the bolts aren't tightened, but as soon as I tighten them the hub only spins for a few seconds then quickly stops. Any ideas as to why this is happening? Any help is appreciated! Thanks, Harry.

Posted by Harry Bradbury on 24/04/2015

Reply from TartyBikes on 27/04/2015

Hi Harry - it sounds as if something is rubbing where it shouldn't be. The first thing to check is whether your brake pads are rubbing - they can sometimes rub and slow the wheel down without making any noise. If it is not that, there is likely something pressing against the outer bearing race or hubshell attached to the axle. It is difficult to say without seeing it, though if you take all the spacers and such off the axle and look for anything that has had the anodizing rubbed off, that will be the problem. Hope that helps. Thanks, Flipp.

Mike Lehane

Hello I have these hubs and need to buy new axles/bolts do you know what size they are?

Posted by Mike Lehane on 26/01/2018

Reply from TartyBikes on 26/01/2018

Hi Mike - This hub uses M6 bolts. To get the correct length I'd recommend removing one of your current axle bolts and measuring from the base of the head to the tip of the thread. We stock a range of lengths of M6 bolts in both Steel and Titanium. Thanks, Mark

Julien Herold

Hey guys, Do you reckon that it's safe to upgrade the axle bolts to aluminium ones? When installing it into the fork it seems the bolt only has to provide clamping and doesn't have to take any shearing force. Same for the rear hub (Trialtech Sport 135 Rear Disc) and the dropouts. Am I right with this assumption?

Posted by Julien Herold on 19/02/2018

Reply from TartyBikes on 19/02/2018

Hi Julien - We've seen riders shear alloy axle bolts before so generally don't recommend them, especially for the rear. If you're looking to save weight, titanium bolts would be a much more durable way of doing it and should still save a good %age of weight per bolt. Thanks, Mark


Do you have any idea when this hub will be back in stock? Thanks, Jim

Posted by Jim on 17/09/2018

Reply from TartyBikes on 17/09/2018

Hi Jim!
We believe Trialtech will be receiving more of these in the next week or so. As soon as they're available we'll get some ordered.
If you'd like to, you can set up a stock reminder on the product page so you'll get an e-mail as soon as they're back in stock.

Rahul Mishra

Is this hub is of 15mm axle and can be used in inspired arcade.. plz reply me its important very much

Posted by Rahul Mishra on 11/01/2016

Reply from TartyBikes on 11/01/2016

Hi Rahul - This hub uses a 10mm axle, so is not compatible with the Arcade. The only hub we sell that is compatible is the Hope Pro 2 Evo or Hope Pro 4 hub, if you also buy some Hope Axle Adaptors (Quick find code: 011295) in 15mm size to go with it. Thanks, Mark


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  • © TartyBikes Ltd, 2018
  • Tel. (UK). 01772 32 33 33
  • Tel. (Intl). 0044 1772 32 33 33

TartyBikes Ltd, Units 3-4, Club Street, Bamber Bridge, Preston, PR5 6FN

  • Company No. 6131482
  • VAT. GB 860 0270 59

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