The Strummer DMSP-SHM29-ULA Spindle is designed for the Strummer chainwheel platform with a modular system. In this system, the spindle, crank arms, and chainring are separate components, so users do not need to replace the entire chainwheel set when performing maintenance, replacing components, or changing the configuration.
This modular concept makes the system easier to repair, more efficient to maintain, and more flexible for future upgrades. As long as compatible components are used, users can adjust the setup without having to repurchase the entire chainwheel set.
This spindle uses a 29 mm diameter and is available in 2 length variants to accommodate differences in chainline and BB width between Road and MTB requirements.
Product Variants
-
Strummer DMSP-SHM29-ULA 125 x 29 mm Spindle
For Road applications
The 125 mm length accommodates the chainline and BB width requirements of the Road system
Material: AL7075, CNC-machined
Weight: 118 grams
Color: Silver
SKU: AS-00034SL -
Strummer DMSP-SHM29-ULA 129 x 29 mm Spindle
For MTB applications
The 129 mm length accommodates the chainline and BB width requirements of the MTB system
Material: AL7075, CNC-machined
Weight: 121 grams
Color: Silver
SKU: AS-00033SL
Key Specifications
- Spindle Diameter: 29 mm
- Material: AL7075
- Production Process: CNC-machined
- Color: Silver
Modular System Concept
This Strummer chainwheel platform uses a modular system, in which:
- Spindle is a separate component
- Crank arms are separate components
- Chainring is a separate component
With this concept, the system is easier to repair and more flexible. If one component needs to be replaced, users do not have to purchase a new chainwheel set. The system also enables more efficient configuration changes according to requirements and compatible components.
Crank Compatibility
Suitable for use with the following cranks:
-
Strummer DMCA-ULA1 Crank, Alloy, 165 mm
SKU: CRANK-00021GSBK -
Strummer DMCA-ULA1 Crank, Alloy, 167.5 mm
SKU: CRANK-00022GSBK -
Strummer DMCA-ULA1 Crank, Alloy, 170 mm
SKU: CRANK-00023GSBK -
Strummer DMCA-ULCH1 Crank, Carbon T700, 165 mm, Glossy Black Marble Pattern
SKU: CRANK-00019MBLGSBK -
Strummer DMCA-ULCH1 Crank, Carbon T700, 170 mm, Glossy Black Marble Pattern
SKU: CRANK-00020MBLGSBK
Chainring Compatibility
Suitable for use with the following Shimano Direct Mount Compatible System chainrings:
-
Strummer DMCR-SHM-ULA1 Chainring, 32T, AL-7075, Ultralight AL7075, Pin, Black
SKU: CRING-00050BKCNC -
Strummer DMCR-SHM-ULA1 Chainring, 34T, AL-7075, Ultralight AL7075, Pin, Black
SKU: CRING-00051BKCNC -
Strummer DMCR-SHM-ULA1 Chainring, 40T, AL-7075, Ultralight AL7075, Pin, Black
SKU: CRING-00052BKCNC -
Strummer DMCR-SHM-ULA1 Chainring, 42T, AL-7075, Ultralight AL7075, Pin, Black
SKU: CRING-00053BKCNC
Key Advantages
- Modular system: the spindle, crank arms, and chainring are separate components
- Easy to Repair: more efficient component replacement without having to purchase a complete chainwheel set
- Flexible for maintenance, component replacement, and configuration adjustments
- 29 mm spindle diameter
- Available in a 125 mm variant for Road and a 129 mm variant for MTB
- AL7075 material with a CNC-machined process for precision, strength, and low weight
Notes
This product is a spindle for a modular chainwheel system.
The crank arms and chainring use a modular system and are selected separately according to requirements and compatible components.
Bottom Bracket Selection
The 29 mm spindle is not compatible with a PF41/24 BB for 24 mm spindles. For a 41 mm press-fit frame, choose the Strummer PF41-29. Match the frame shell width, spindle length, and spacer requirements before installation.
