LANDMASTER
LANDMASTER 64 Titanium One-piece Rear Wheel Bolt for BMW Motorrad M12×L55×P1.5
Integrated structure: From genuine "wheel bolt + taper ring" to a single unit.
Some BMW Motorrad models use a combination of two parts to secure the rear wheel:
Genuine wheel bolt
BMW Part No.: 36312333225
and
Taper ring
BMW Part No.: 36132302339
Instead of simply replacing this genuine two-piece structure with titanium, LANDMASTER integrated the wheel bolt and the tapered section.
We designed and manufactured this from scratch as a Ti-6Al-4V rear wheel bolt specifically for BMW Motorrad.
This is not just a titanium bolt for weight reduction.
It's a LANDMASTER original, specially designed product that re-examines the BMW genuine wheel fastening structure itself, with the tapered part that contacts the wheel integrated with the bolt body.
Made with Ti-6Al-4V, also known as 64 titanium
The material used is Ti-6Al-4V titanium alloy, also known as 64 titanium.
It is a material that is lightweight, yet boasts high strength and excellent corrosion resistance.
The size of this product is M12 × L55 × P1.5.
It is a large diameter size and, moreover, it is not a general bolt shape; it has a special shape with the tapered part that contacts the wheel integrated into it.
The head and tapered part are manufactured by machining from Ti-6Al-4V material.
And, the threaded part uses roll forming.
Head and tapered part are machined
Genuine BMW parts consist of:
Wheel bolt
＋
Taper ring
as separate structures.
At LANDMASTER, we integrated the function of this taper ring into the bolt body, and machined the head to the taper section as a single, integrated structure.
Therefore, the genuine taper ring is not used during installation.
This is not a commercially available M12 size titanium bolt combined with a genuine taper ring.
This is a rear wheel bolt specifically designed for the BMW Motorrad rear wheel fixing part, including the contact surface with the wheel.
We didn't just replace the bolt with titanium; we also considered how the wheel receives and how it is secured when manufacturing it.
Threads are roll-formed, a costly process
One of the major features of this product is that its threads are roll-formed.
Unlike cut threads, where material is removed to form the thread, roll forming is a processing method where the material is plastically deformed by a die to form the thread.
For small-volume production of titanium bolts, it is not common for the threads to be roll-formed due to processing and cost issues.
In particular, this product has the following special specifications:
Ti-6Al-4V
M12×L55×P1.5
Integrated tapered section
Head and tapered section are custom-machined
Threads are roll-formed
Despite being a bolt produced in small quantities specifically for BMW Motorrad, we deliberately incurred higher costs to finish the threads using roll forming.
This product differs from common general-purpose titanium bolts not only in material, but also in design philosophy and manufacturing process.
Manufactured using both "cutting" and "rolling" processes
Not all parts of this bolt are manufactured using the same processing method.
The head and tapered sections, which require specific BMW-dedicated shapes, are machined.
The threaded section is roll-formed.
The processing methods are chosen based on the specific part.
While the head, tapered section, shaft, and threaded section are all part of a single Ti-6Al-4V bolt, different manufacturing processes are employed for the shape-forming parts and the thread-forming parts.
This is a LANDMASTER original product that not only changes the material to 64 titanium but also specifically creates the manufacturing method.
Integrated structure that does not use the genuine tapered ring
BMW genuine parts use a combination of a wheel bolt and a tapered ring to secure the rear wheel.
LANDMASTER has integrated this tapered section with the bolt body.
Therefore, the structure is:
Head
Tapered section
Shaft
Threaded section
This is a Ti-6Al-4V rear wheel bolt with an integrated structure.
The genuine tapered ring is not used.
The key feature is that it's not just a product where "only the genuine bolt has been replaced with titanium," but rather, the genuine two-piece structure itself has been re-evaluated and designed as an integrated structure.
Product Specifications
Product Name: LANDMASTER Ti-6Al-4V Integrated Rear Wheel Bolt
Size: M12×L55×P1.5
Material: Ti-6Al-4V
Head: Machined
Tapered section: Machined, integrated with bolt
Threaded section: Roll-formed
Application: For BMW Motorrad rear wheel fastening
Compatible genuine wheel bolt: 36312333225
Compatible genuine tapered ring: 36132302339
Genuine tapered ring: Not used
Main applicable models
BMW K1200LT
BMW K1200RS
BMW K1200GT
BMW R1100S
BMW R1150R
BMW R1150RT
BMW R1150RS
BMW R850R, etc.
The bolts used may vary depending on the vehicle model, year, and wheel specifications.
Before purchasing, please confirm the part number "36312333225" and bolt size of the currently installed genuine BMW wheel bolt.
It's not easy to produce the same specifications in small quantities now.
This product was produced in small quantities by LANDMASTER specifically for BMW Motorrad.
M12 × L55 × P1.5 size.
Ti-6Al-4V.
Integrated tapered section.
Head and tapered section are machined.
And the threads are roll-formed.
It is not a product that repurposed commercially available M12 titanium bolts.
It was specially designed and manufactured from scratch to match the BMW genuine rear wheel mounting structure.
A particularly important point is that, despite being a small-lot production item, it even employs roll-forming for the threads.
Specifications that involve setting up processing conditions for small quantities of Ti-6Al-4V bolts and incurring costs for the roll-forming process are rarely seen in typical small-lot production of titanium bolts.
Furthermore, this time, it's not a regular bolt shape, but a special shape with the BMW genuine tapered ring part integrated.
It's not just about using 64 titanium as the material, but also combining:
Custom design
Machining of the head and tapered section
Integrated tapered structure
Roll-forming for the threaded section
Currently, if we were to newly produce the same specifications in small quantities, not only the material cost but also considerable manufacturing costs would be required for each process, such as custom-shape machining, roll-forming, setup, and handling of small-lot production.
A BMW-specific piece, created in the LANDMASTER era.
It's titanium because it's light.
It's not just that kind of bolt.
We re-examined the BMW genuine "wheel bolt + taper ring" structure and integrated the tapered section.
The head and tapered section are machined from Ti-6Al-4V, and despite being a small-volume production item, roll-forming, which incurs higher costs, was adopted for the threaded section.
This is a LANDMASTER original 64 titanium rear wheel bolt, specially designed for BMW Motorrad and meticulously crafted down to the manufacturing method.
We are now re-selling old LANDMASTER products that have been stored for a long time.
Read more about the technology and development
Explore the thinking behind the product and the related information below.