Truvativ Crank Bolts
Truvativ

Truvativ Crank Bolts

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Replacement Truvativ M12 cromoly self-extracting crank arm bolts for Howitzer cranksets (Bag of 2). Durable, service-friendly hardware with SRAM model ID FC-SPP-A0.

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Product Details

Overview & Technology

Truvativ 11.6900.002.040 crank bolts are purpose-built M12 fasteners designed for Howitzer crank arms and similar SRAM/Truvativ systems. Sold as a bag of two, these bolts carry the SRAM model ID FC-SPP-A0 and replace worn or damaged crank fixing hardware with a gravity-rated, service-friendly solution. Constructed from heat-treated cromoly (chromium-molybdenum) steel, these bolts deliver higher tensile strength and improved fatigue resistance compared to standard alloy bolts. The self-extracting design integrates an internal mechanism that eases crank removal, helping prevent damage to the crank interface and saving time on trail-side repairs or workshop servicing.

Key Features & Benefits

Self-extracting mechanism: Built-in extraction means the bolt pulls the crank arm away cleanly when loosened, avoiding pry bars and reducing risk to spindle threads. That improves maintenance speed and protects expensive crank hardware. Heat-treated cromoly construction: Offers a strong, durable core for gravity and enduro riding where repeated hard forces demand robust fasteners. Lightweight for its strength class and finished to resist corrosion for long-term reliability. • SRAM Model ID: FC-SPP-A0 — exact replacement for compatible Howitzer cranks • Sold as a bag of 2 — replace both sides during service for consistent preload • M12 thread size — intended for cranks using M12 fixing hardware

Fit, Compatibility & Installation Notes

These bolts are specifically for Truvativ Howitzer-style crank arms and other SRAM/Truvativ cranksets that accept M12 self-extracting bolts. Confirm compatibility with your crank by checking the manufacturer part number 11.6900.002.040 or SRAM model ID FC-SPP-A0. Installation tips: use the correct hex/socket tool specified by your crank manufacturer and tighten to the crankmaker's torque specification. Because application details can vary between crank families, always consult your crank's service manual. For high-vibration enduro and downhill use, replace bolts in matched pairs and consider a medium-strength threadlocker only if recommended by your crank manufacturer.

Who This Is For

This kit is ideal for enduro, downhill and aggressive trail riders who need reliable, serviceable crank fixing hardware. If you ride hard, carry your bike on uplift days, or frequently service cranks, the self-extracting feature and cromoly strength give confidence under repeated loads. Mechanics and home-servicing riders will appreciate the time savings during crank removal and the OEM-level fit for Truvativ Howitzer owners. If you’re unsure about fitment, bring your crank arm or reference the part numbers to verify compatibility before purchase.

Key Features

  • ✓ Heat-treated cromoly M12 bolts for high-strength crank fixation
  • ✓ Self-extracting design simplifies crank removal and protects threads
  • ✓ SRAM model ID FC-SPP-A0 — OEM Truvativ Howitzer replacement part
  • ✓ Sold as a bag of two — replace both sides for even preload
  • ✓ Gravity-rated hardware built for enduro and downhill demands
  • ✓ Compact shipping: 2" x 2" x 1", light 0.2 lb package weight

Product Identifiers

Vendor Item # 11.6900.002.040
UPC 710845403040

Frequently Asked Questions

Are these bolts compatible with my Truvativ Howitzer crankset?

Yes — this part (11.6900.002.040, SRAM FC-SPP-A0) is the OEM M12 self-extracting bolt set for Howitzer crank arms. Verify your crank's documentation or existing bolt markings to confirm M12 specification before ordering.

Can I reuse my old bolts or should I replace both at once?

For best results replace bolts in matched pairs to ensure consistent preload and wear characteristics. If one bolt is damaged, the mating side may be similarly aged — replacing both preserves clamping balance and long-term reliability.

What torque should I use when installing these crank bolts?

Torque specifications vary by crank model. Always follow the torque value supplied in your crank's service manual. If you don't have it, consult manufacturer guidance — and use a calibrated torque wrench to avoid under- or over-tightening.

Do these bolts require threadlocker or anti-seize?

Use the manufacturer-recommended practice. For many gravity applications a medium-strength threadlocker is common, but some crankmakers advise against it. If in doubt, check Truvativ/SRAM guidance or your service manual before applying any compound.

What tools do I need to install or remove these bolts?

You will need the correct hex or socket tool specified for your crank's bolt head (check your crank manual). Additionally, a torque wrench is recommended for accurate installation and to protect crank and spindle interfaces.

Buying Guide

When buying replacement crank bolts choose the correct thread size (M12 vs M8), confirm OEM part numbers, and prioritize materials built for your riding style. For enduro and downhill use, steel or cromoly bolts offer superior fatigue resistance compared with lighter alloy bolts. Also consider whether you want self-extracting hardware — it speeds maintenance and protects crank and spindle interfaces. Finally, plan to replace bolts in matched pairs and have the correct tools and torque specs on hand to ensure safe, repeatable installations.

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