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Czar Neuron Frame Kit

Product code: 13483


On order

Czar Neuron Frame Kit

  • Top quality street trials frame kit!
  • Press-fit BB, tapered integrated head tube, 15mm front through axle and more.
- New from Czar, their top of the range Czar Neuron Frame Kit!
- Designed for the latest generation of street trials riders.
- Includes features like an integrated chain tensioner mount, press-fit Spanish BB and tapered, integrated head tube.
- Tough 6000-series aluminium alloy used throughout for the best possible strength.
- 118mm long tapered head tube features a 1 1/8" upper with a 1.5" lower, and requires an integrated headset - supplied with the kit!
- Head tube joined to the top and down tubes with large gussets to improve strength.
- CNC-machined BB uses a tough press-fit Echo Urban Spanish BB.
- Chunky CNC-machined BB yoke creates a stronger and stiffer rear triangle.
- 27.2mm internal diameter seat tube braced with a CNC-machined plate between the seat stays.
- Vertical dropouts spaced at 135mm to allow greatest compatibility with fixed and freehubs on the market.
- CNC-machined IS disc mount is braced with a plate between the seat stay and chain stay.
- Integrated frame mount works perfectly with Czar's sprung chain tensioner, making chain tension easy.
- Czar Street Forks are constructed with a one-piece CNC machined 190mm long steerer tube for greatest strength.
- Integrated crown race simplifies assembly and increases strength.
- Oversized fork legs provide extra stiffness, and also allow for greater weld contact area at the crown.
- Wide CNC-machined dropouts are designed to use a 15mm through axle (compatible with hubs such as the Hope Pro 4 with suitable end caps).
- Post mount disc brake mount on the fork only.
- Threaded top cap is cleverly designed to allow steerer tube routing with minimal hassle.
- Available in tough anodised black finish only.
- Weight - Frame: 2.134kg. Fork (with top cap and axle): 1.140kg. Tensioner and bolts: 0.074kg. Headset: 0.060kg. Total: 3.408kg.

- Wheelbase: 975mm
- Chainstay length: 355mm
- BB rise: +15mm
- Head angle: 74
- Reach (centre of BB to top centre of headtube): 650mm

- Headset type: Integrated, tapered
- Bottom bracket type: Spanish press-fit, 68mm shell width
- Dropout spacing: 135mm
- Brake mount type: +20mm IS Disc Mount
- Bashguard type: n/a - requires a bashring

Additional Information

This frame comes with a 6 month warranty covering manufacturing and materials defects. Damage incurred from collisions and impacts with obstacles may have a negative effect on the outcome of any warranty claim.



Does the spindle(shown in the picture) also comes with the frame kit? If so, will trialtech sport lite isis crankset fit this spindle?

Posted by brianmaster453 on 16/12/2017

Reply from TartyBikes on 18/12/2017

Hi Brian - This frame kit is supplied with BB, which uses a standard ISIS interface. Your Trialtech cranks will fit this fine. Thanks, Mark


Hey, i´m thinking about updating my Yaabaa 799 Frame to the Neuron Frame. What Postmount Size is the Fork in the Neuron Frame? Is it PM6 (160 mm) or PM7 (180 mm)?

Posted by Thomas on 27/12/2017

Reply from TartyBikes on 29/12/2017

Hi Thomas - It appears that the Post Mount is suitable for a 180mm without adaptor, so should be PM7. Thanks, Mark


Hi guys, I'm looking at doing a build with this frame, when is it back in stock? Also will Inspired's new Arcade cranks fit this frame/bb? Thank you

Posted by Matt on 04/06/2018

Reply from TartyBikes on 05/06/2018

Hi Matt - Unfortunately these frames aren't going to be back in stock until mid-to-late August, sorry. Ordering from Czar isn't a quick process, so there is usually a bit of a delay getting our hands on them. The Arcade BB won't fit unfortunately - the Czar uses a press-fit Spanish BB whereas the Arcade is supplied with a screw-in 'Euro' BB. If you fitted a 22mm axle Spanish BB to the frame you could theoretically fit the Arcade cranks, but we're unsure about clearance of the chainring and of the arms themselves as this isn't something we've seen done before. Sorry we can't be more help! Thanks, Mark


I am looking to buy this bike wat rear hub would jou recomend

Posted by Byloo on 01/10/2018

Reply from TartyBikes on 02/10/2018

Hi Byloo!
Your choice of rear hub will depend on which crankset you decide to use. As the Czar uses a convention 135mm x 10mm spacing, we have a fairly wide selection available.
If you can let us know a bit more about the spec you're looking to use for the rest of the bike we'll do our best to make some suggestions to suit.

Yaroslav Mytkalyk

Hi "Late August" has already passed but seems it's not in the stock yet (or not in stock again already?) Are there any updates on when to expect these? Thanks

Posted by Yaroslav Mytkalyk on 01/10/2018

Reply from TartyBikes on 01/10/2018

Hi Yaroslav!
Our order was delayed, so we haven't received it yet unfortunately.
Czar have changed all their frames, so the replacement we will receive will be the updated Ion frame. It should be quite similar to this, although we can't say for sure until we receive them. We hope this will be in late October.
We will have some Czar Street Trials Forks available too.


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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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