Jitsie Varial 20” 920mm HS Frame

The new Jitsie Varial 20” 920mm frame is specially designed for riders up to 1.60m (5ft 3in) tall.

Description and materials
- New Jitsie Varial 20” 920mm frame, a novelty on Belgian brand Jitsie’s bike trials catalogue.
- This has been a long-awaited novelty all around the world: after months of development and top level testing carried out by Jitsie team riders Dani Comas, Alejandro Montalvo and Adam Morewood, the Belgian brand has finally given the Jitsie Varial frame the go-ahead.
- This 920mm version is ideal for riders up to 1.60m (5ft 3in) tall thanks to its compact, short geometry that makes the bike much more agile and easier to control.
- Completely manufactured from high quality 6061-T6 aluminium alloy, which allows for the best compromise between great performance, low weight and affordable price.
- Features a standard 110mm long, 1 1/8” diameter head tube for internal headsets. It has a large front hole that helps remove any excess material as well.
- Each one of the main tubes is gusseted to the head tube, which increases the front end’s stiffness and strength.
- The down tube has an optimized, Jitsie-exclusive shape that helps increase welding surface on the ends, therefore improving tensile and fatigue strength.
- The top tube has been thoroughly analized in order to reduce its dimensions without compromising its performance, achieving the perfect balance between low weight and high stiffness.
- The seat tube is straight and only allows the use of the new Jitsie seat and post.
- This hole can be covered up with a Jitsie branded silicone seat tube bung (supplied with the frame).
- Standard 68mm bottom bracket tube, designed to use threaded bottom brackets with standard 1.37”x24tpi thread.
- The BB tube features 4-bolt mini-bashplate mounts compatible with several brands’ bashplates currently available.
- Curved seat stays help increase tyre clearance and also increase rear end’s stiffness.
- The chain stays are joined together with a little tube close to the BB tube, which increases rear end’s strength and stiffness considerably and also prevents it from cracking.
- The seat stays are joined to the chain stays next to the dropouts, which adds a little bit of extra stiffness and strength.
- Flat, horizontal dropouts have been accurately CNC-machined, spaced at 116mm and designed to use snail cams.
- This frame is available with 4-bolt rim brake mounts spaced at 86mm. Furthermore, it has a reinforcement tube joined to both seat stays next to the seat tube, essential to avoid frame flexion.
- Note: this frame is designed to use a thin rear 20” rim (not compatible with 19” rims).
- Available in anodized black, with Jitsie Varial white and fluro yellow adhesives.

The 7 Compatibility Keys
Below you can find the main details you need to consider when installing any components on this frame:

- 1) Headset. This frame has a standard headtube with 42mm inner diameter, compatible with 1 1/8” internal headsets.

- 2) Bashplate. This frame has 4-bolt bashplate mounts on the bottom bracket shell. This means it’s compatible with Jitsie, Bonz Pro Light, Clean Light and those bashplates with the following dimensions:
         · Distance between front and rear holes: 39-40mm.
         · Lateral distance between holes: 43mm.

- 3) Bottom Bracket. A threaded BB with standard 1.37”x24tpi thread must be used, therefore any traditional or BB30 threaded BBs can be used (Try-All, Hashtagg, Bonz, etc.).

In order to prevent the cranks from rubbing the seat stays, which may happen due to varying crank offsets for each model, it’s recommended to install a 127,5mm or 128mm wide bottom bracket.

- 4) Rear Brake. This frame is available with 4-bolt rear rim brake mounts only, so be sure to use a rear brake of that type.

The spacing between mounts is 86mm, therefore you must use a thin 20” rim (not compatible with 19” rims).

- 5) Chain tensioner. This frame is designed for use with snail cams. Since the dropouts are spaced at 116mm, the rear hub width plus the 2 snail cams must add up to 116mm.

- 6) Rear hub. Since this frame is designed for use with snail cams, the rear hub width plus the 2 snail cams must add up to 116mm. Most 20” rear hubs are 110mm wide, therefore you’ll need 2x 3mm-thick snails cams, in this case.

- 7) Fork. The steerer tube on the fork must be long enough to reach the top bolt on the stem’s steerer tube clamp.
To ensure this, you must add the length of the headtube (110mm for this frame), plus the cups bits that sit outside the headtube, plus the headset spacers (if any) and/or dust cover sitting under the stem, plus the length of your stem’s steerer tube clamp. Once you’ve done this, you’ll be ready to know if your fork is long enough so that at least 2mm of it remain above the top bolt of your stem’s steerer tube clamp.

Geometry
- Space between dropouts: 116mm
- Bottom bracket shell: 68mm
- Head tube: 110mm

- Wheelbase: 920mm
- Chain stay length: 350mm
- BB Rise: +55mm
- Head Angle: 71.5º

Finishes
- Available in anodized black, with Jitsie Varial white and fluro yellow adhesives.

Weight
- 1.395kg

Additional information
If you have any doubts, please contact us on info@trial-bikes.com