Axle 50 Black 1040 CRG

Official Guide of Hardens CRG KF & KZ (immediate clarity)

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? Technical note: Models with reference (R) = reinforced have upper tube thickness (2.5 mm instead of 2 mm). They offer greater resistance to twisting, ideal for collecting the massive couple in gearbox category.

- Complete description of the product (H1: back shaft CRG Ø 50 mm black - KF / KZ special - Reinforced settings and versions)

Optimize the behavior of your rear train and refine your curve motricity thanks to theoriginal back tree CRG 50 mm diameter. Recognizable with its high-end protective black finish, this axis is the essential centerpiece to set the chassis of high efficiency competition categories such as the KF (high performance monovite) and the KZ (Queen's gearbox category).

On a competitive kart, the ability of the axis to bend under the side stress directly determines the amount of grip. That's why we propose you, via our drop down menu, a multitude of declensons combining several official lengths and hardships. To meet the extreme physical constraints of the KZ category (big pairs with acceleration, full braking), favor the marked versions of a R (R = reinforced). With their wall thickness carried to 2.5 mm (as on models S25, T1, T4 or M25), these reinforced trees stabilize the rear yard and avoid rebounds (chatteringWhen discounts of violent gases, while 2 mm thick versions (such as the original M20 or T2) offer perfect gradual flexibility for the delicate tracks.

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The Tip in Michel (the corner of the expert)

* "Hi Paddocks Stragges! The 50 mm backdrop of 50 mm at CRG, It's the number one adjustment cursor to pick up the last tenths at the time, which you are flying in KF or sending heavy in Kz. Do not stay blocked all season with the same tree on the pretext that it's a long way to disassemble !

My indispensable mechanical trick for KZ and KF pilots: understand the R (reinforced) index !

When you see a DR in the drop-down menu, it means Reinforced. Concretely, the tree is 2.5 mm thick instead of 2 mm. In kz, with the stopped departures and the changes in reports that shake the entire chassis, a standard 2 mm tree can sometimes twist or generate sprinkle output vibrations if the track has a lot of grip. By going on a version DR, you stiffer the internal structure without necessarily changing the hardness of the chosen steel. It is the secret weapon to calm a rear train that jumps and find a rifle ball motricity !

Small mounting trick: When tightening your three rear bearings on your new black axis, never shine the chassis. The tree must slide itself by hand through the bearings before tightening. If you have to force, align your brackets again, otherwise the tree will not work as expected on track! "*

- Change & Mounting Guide: Step by Step

- SEO FAQ (Frequently Asked Questions)

Q: What is the concrete utility of a "R" (reinforced) tree in category KZ ?

A: In category KZ (125cc gear motors), the rear train undergoes instantaneous and massive torque transfers to each reporter, as well as at the time of the started departures. A tree with the index DR has a thicker wall 2.5 mm (instead of 2 mm standard). This reinforced design offers greater pure torsion resistance, which allows you to stabilize the kart, limit the rear rebound on the tracks at Fort Grip and to offer a much more frank motor skills to acceleration.

Q: Are the dimensions and keyplaces identical for KF and KZ versions ?

A: Yes I do. The diameter shaft 50 mm black CRG use the machining machining and grooves of standardized keys. It thus adapts perfectly to the crown and disc holder configurations for monobish karts (KF, Rotax, X30) as well as the specific platinies of Kz karts (where the crown hub is remotely remotely).

Q: How do you know if I have to choose a flexible shaft or a hard tree ?

A: This is the golden rule of the settings: if the track has a lot of grip (summer, important gum deposit), the kart tends to "stick" and to curb the cornering engine; You have to install a tree flexible (S20, S25, T3) to release the backinar. If the track is slippery, cold or in the rain, the kart lacks motor skills; You have to install a tree hard (T2, T5) to force the rear tire to bite bitumen.