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crawlster®BTA – the unique BTA steering system for all serial AXIAL®SCX10 (I) front axles.

crawlster®BTA – SteeringSystem – SCX10 (I)

Fixes negative steering angles and improves the steering geometry / performance by positive Ackerman-effect. Maneuverability and off-road ability are clearly optimized:

  • universal application with standard- and hi-clearance knuckles fits also SSD D60 axles
  • no steering bar in front of the axle – optimized banking angle
  • easy installation – no complicated reconstruction
  • up to 100% drop deployable – allows 4-link suspension
  • 30 parts all inclusive complete set
  • not suitable for SCX10 II  (AX90046 SCX10 II)

48,00 €

  • SOFORT-Versand am Bestelltag bis 17:00 Uhr (Mo-Fr)1

Price notice for European 

and International orders:

orders from/to EU countries will be charged including MwSt/VAT +shipping € 6,20

INTERNAT. orders (outside EU) will be charged w/o MwSt/VAT + FREE SHIPPING

crawlster®BTA – Application · Features · Benefits


Welcome to the crawlster®BTA steering system – the only BTA-steering system for AX-SCX-1/10 vehicles with which the benefits of a behind-the-axle articulation can be easily and perfectly realized both with standard knuckles (plastic) as well as Hi-clearance knuckles (aluminum).

The crawlster®BTA steering system gives your AX-SCX-1/10 crawl, trail or scale model a completely new cornering
performance – with dramatically improved off-road maneuverability and mobility!

Content of the crawlster®BTA

  • 1x crawlster®BTA steering bracket
    for all serial AX-SCX-1/10 front axles
  • 10 parts for Standard knuckles
  • 4 parts for Standard-/ Hi-clearance knuckles
  • 8 parts for Hi-clearance knuckles
  • 4 parts for Servo-linkage
  • 2x crawlster®BTA Sticker
  • 1x detailed product information with detailed fitting instructions
Illustration of crawlster®BTA product packaging
crawlster®BTA is Made in Germany

crawlster®BTA Button STEERING
crawlster®BTA Button SIMPLY
crawlster®BTA Button PERFECT

crawlster®BTA – Anyone can bank with this.

Abbildung/Skizze: negativer Spurdifferenz-Winkel

Negative steering angle =
negative Ackermann

Abbildung/Skizze: crawlster®BTA an Standard Kunststoff-Achsschenkeln = zero Ackermann

crawlster®BTA on standard plastic
steering knuckles
(AX80004) ≥ zero Ackermann
steering geometry

Abbildung/Skizze: crawlster®BTA an Hi-clearance Achsschenkeln + Universal Joint Axle Shaft = positiver Ackermann-Effekt

crawlster®BTA an Hi-clearance
knuckles (AX30526) + Universal Joint Axle Shaft (AX30464) = positive Ackerman steering geometry

The crawlster®BTA steering system provides optimized steering geometry and dramatically improved off-road maneuverability:

  • Unique BTA steering system – innovative concept to realize a „behind-the-axle“ articulation
    for all AX-SCX-1/10 serial front axles
  • Immediate & dramatic improvement of steering geometry / performance
  • Fixes negative steering angles – now the inner wheel steers ≥ zero / more than the outside wheel
  • Universal application also with standard knuckles – optimizes the steering geometry ≥ zero Ackerman
  • Positive Ackerman steering geometry with Hi-clearance knuckles

Positive Ackermann-effect


Maximum steering angle with Hi-clearance knuckles


Universal application also with standard knuckles

Button: crawlster®BTA fits all SSD D60 axles

crawlster®BTA – Really simple. More maneuverability.

The innovative crawlster® BTA steering system is ideal to fit a perfect BTA linkage with Hi-clearance knuckles (AX30526)


A complete, illustrated fitting guide is sent with each delivery of the crawlster®BTA steering system.

The unique crawlster®BTA steering system also allows a linkage using the serial plastic steering knuckle (AX80004) – using both 3 and 4 link suspension!


The crawlster®BTA steering system can quickly and easily be installed by anyone:

  • No complicated reconstruction
    such as lifting the servos necessary
  • The centre of gravity does not get raised
  • 29 parts all inclusive complete set
  • Standard + hi-clearance options included
    in the set can be updated at any time
  • Easy assembly:


crawlster®BTA – The ultimate in looks.

The crawlster®BTA steering system gives you a totally new driving experience – plus the ultimate in looks:

  • No steering bar in front of the axle
  • Almost invisible under the chassis
  • No visual impairment – true scale vehicles
  • Optimized banking angle – less snagging on the ground
  • Up to 100% drop deployable
  • Allows 4-link suspension
crawlster®BTA steering system is Made in Germany

Illustration on the right: Series AX-SCX-1/10 chassis with Hi-clearance knuckles (AX30526), aluminum C Hub Carrier (AX30495), Universal Joint Axle Shaft (AX30464), Landrover Defender 90 scale body, RC4WD Tango Down beadlock wheels, S.D.I. Trail Doctor XL tires and crawlster®BTA steering system

No steering bar in front of the axle
4-Link suspension

The crawlster®BTA steering system is suitable for all series front axles of  AX-SCX-1/10 vehicles. For detailed compatibility information take a look at our datasheet. crawlster®BTA is DPMA protected. All rights reserved. Reproduction / distribution – even in part – only with express permission. The vehicles shown on these website are not part of the crawlster®BTA steering system and must be purchased separately.