Senzo OTK (TonyKart) 50mm Rear Axle
The Senzo Rear Axle 50mm OTK is a high-quality aftermarket axle built specifically for OTK-based chassis including Tony Kart, Exprit, Kosmic, Redspeed and Energy. Same fitment as genuine OTK, engineered for strength and consistency, at a sharper price point.
Available in seven stiffness grades — more range than the genuine OTK lineup offers — so you can genuinely dial your setup to conditions rather than just running whatever's already in the kart. Available in 1000mm, 1030mm and 1040mm lengths.
Axle stiffness is one of the most effective tuning tools on a kart. A softer axle flexes more, lifting the inside rear wheel and generating rear grip — ideal when the track is green, cold, or damp. A harder axle limits that flex, reducing grip and preventing the rear from overworking on high-traction surfaces. Get it right and it's worth more than a full day of chassis adjustments.
Key Features
- 50mm diameter rear axle
- Available in 1000mm, 1030mm and 1040mm lengths
- Compatible with Tony Kart, Exprit, Kosmic, Redspeed and Energy chassis
- 7 stiffness grades — more range than the genuine OTK lineup
- Grades U, Q, N and H directly match genuine OTK equivalents
- High-strength steel construction for race reliability
Why Choose the Senzo OTK Axle?
Seven stiffness grades means you've got a genuine answer for every condition — not just a choice between soft and hard. Whether you're chasing grip on a damp morning or trying to free up the rear on a high-rubber championship circuit, there's an exact grade for it. Most competitive drivers keep two or three stiffnesses in the van — a well-chosen axle swap is worth more than a full day of chassis tweaking.
KKC Kart Components — trusted karting parts built for performance, durability, and value on race day.
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Senzo OTK (TonyKart) 50mm Rear Axle
Senzo OTK (TonyKart) 50mm Rear Axle
The Senzo Rear Axle 50mm OTK is a high-quality aftermarket axle built specifically for OTK-based chassis including Tony Kart, Exprit, Kosmic, Redspeed and Energy. Same fitment as genuine OTK, engineered for strength and consistency, at a sharper price point.
Available in seven stiffness grades — more range than the genuine OTK lineup offers — so you can genuinely dial your setup to conditions rather than just running whatever's already in the kart. Available in 1000mm, 1030mm and 1040mm lengths.
Axle stiffness is one of the most effective tuning tools on a kart. A softer axle flexes more, lifting the inside rear wheel and generating rear grip — ideal when the track is green, cold, or damp. A harder axle limits that flex, reducing grip and preventing the rear from overworking on high-traction surfaces. Get it right and it's worth more than a full day of chassis adjustments.
Key Features
- 50mm diameter rear axle
- Available in 1000mm, 1030mm and 1040mm lengths
- Compatible with Tony Kart, Exprit, Kosmic, Redspeed and Energy chassis
- 7 stiffness grades — more range than the genuine OTK lineup
- Grades U, Q, N and H directly match genuine OTK equivalents
- High-strength steel construction for race reliability
Why Choose the Senzo OTK Axle?
Seven stiffness grades means you've got a genuine answer for every condition — not just a choice between soft and hard. Whether you're chasing grip on a damp morning or trying to free up the rear on a high-rubber championship circuit, there's an exact grade for it. Most competitive drivers keep two or three stiffnesses in the van — a well-chosen axle swap is worth more than a full day of chassis tweaking.
KKC Kart Components — trusted karting parts built for performance, durability, and value on race day.
Original: $111.39
-65%$111.39
$38.99Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Senzo Rear Axle 50mm OTK is a high-quality aftermarket axle built specifically for OTK-based chassis including Tony Kart, Exprit, Kosmic, Redspeed and Energy. Same fitment as genuine OTK, engineered for strength and consistency, at a sharper price point.
Available in seven stiffness grades — more range than the genuine OTK lineup offers — so you can genuinely dial your setup to conditions rather than just running whatever's already in the kart. Available in 1000mm, 1030mm and 1040mm lengths.
Axle stiffness is one of the most effective tuning tools on a kart. A softer axle flexes more, lifting the inside rear wheel and generating rear grip — ideal when the track is green, cold, or damp. A harder axle limits that flex, reducing grip and preventing the rear from overworking on high-traction surfaces. Get it right and it's worth more than a full day of chassis adjustments.
Key Features
- 50mm diameter rear axle
- Available in 1000mm, 1030mm and 1040mm lengths
- Compatible with Tony Kart, Exprit, Kosmic, Redspeed and Energy chassis
- 7 stiffness grades — more range than the genuine OTK lineup
- Grades U, Q, N and H directly match genuine OTK equivalents
- High-strength steel construction for race reliability
Why Choose the Senzo OTK Axle?
Seven stiffness grades means you've got a genuine answer for every condition — not just a choice between soft and hard. Whether you're chasing grip on a damp morning or trying to free up the rear on a high-rubber championship circuit, there's an exact grade for it. Most competitive drivers keep two or three stiffnesses in the van — a well-chosen axle swap is worth more than a full day of chassis tweaking.
KKC Kart Components — trusted karting parts built for performance, durability, and value on race day.











