Robert Axle Project Trainer Thru-Axle
No ordinary thru-axle: the Trainer Axle from the Robert Axle Project
The Robert Axle for indoor trainers replaces your original thru-axle, which means you can mount your bike with 12 mm over locknut dimension on an at-home trainer. This thru-axle has been manufactured so precisely that it will fit just as well or better than the original. It is compatible with classic indoor trainers (not direct drive trainers) from popular brands such as Tacx or Wahoo. And the best thing: when you finish your session, just take your bike from the trainer, detach the right end of the axle and head on outside, as the Trainer Axle is also suitable for normal outdoor use. You can look forward to being in tip-top shape for the next season.
The Robert Axle Project is run by the ultimate thru-axle experts. With their help you will find the right thru-axle - for your trailer, your indoor trainer or as a light tuning part for your MTB or road bike.
To find out which thru-axle you need, you must first find out the dimensions of your current thru-axle. Often the length and the thread pitch are noted on the axle itself. If not, print this template from the Robert Axle Project (in original size, do not scale) to determine the relevant data. You can also use the configuration from the Robert Axle Project, which will help you find the correct axle using parameters such as bike brand and over locknut dimension.
Specifications:
- Over Locknut Dimension:
- rear: 142 mm, 148 mm
- Axle Diameter:
- 12 mm
Technical Information:
- Use:
- rear: 12 x 142 mm, 12 x 148 mm
- Type:
- thru-axle
- Axle Material:
- aluminium (7075)
Features:
- shank and axle ends CNC precision machined
- hard anodised for robust durability
- no special tools required, installation and wheel removal with 5 mm hex key
- classic resistance indoor trainers from 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo and many other manufacturers (not for direct drive)
- also suitable for outdoor use
- ends of the Trainer Axle protrude 15 mm on both sides
- designed, built and quality-tested in the USA (Bend, Oregon), used worldwide
Models:
Type 1:- Thread Pitch:
- 1.0 mm
- Axle Length:
- 172 mm; 160 mm, 162 mm, 167 mm with spacers
- Use:
- trainers
- Manufacturer Number:
- TRA213
Type 2:
- Thread Pitch:
- 1.5 mm
- Axle Length:
- 172 mm
- Use:
- trainers
- Manufacturer Number:
- TRA204
Type 3:
- Thread Pitch:
- 1.5 mm
- Axle Length:
- 178 mm
- Use:
- trainers
- Manufacturer Number:
- TRA214
Type 4:
- Use:
- trainers
- Compatibility:
- FOCUS R.A.T. Systems with 12 x 142 or 12 x 148 mm Boost over locknut dimension
- Note:
- Comes with nut, which replaces the original R.A.T. nut
- Manufacturer Number:
- TRA214.F
Type 5:
- Thread Pitch:
- 1.75 mm
- Axle Length:
- 174 mm
- Use:
- trainers
- Manufacturer Number:
- TRA201
Type 6:
- Thread Pitch:
- 1.75 mm
- Axle Length:
- 180 mm
- Use:
- trainers
- Manufacturer Number:
- TRA211
Type 7:
- Thread Pitch:
- 1.75 mm
- Axle Length:
- 192 mm
- Use:
- trainers
- Manufacturer Number:
- TRA202
Type 8:
- Thread Pitch:
- 1.75 mm
- Axle Length:
- 198 mm
- Use:
- trainers
- Manufacturer Number:
- TRA210
Type 9:
- Thread Pitch:
- 1.0 mm
- Axle Length:
- 167 mm; 152 mm, 154 mm, 160 mm with spacers
- Use:
- trainers
- Manufacturer Number:
- TRA217
Type 10:
- Thread Pitch:
- 1.5 mm
- Axle Length:
- 165 mm, 159 mm with spacer
- Use:
- trainers
- Manufacturer Number:
- TRA212
Type 11: sold out, use type 4 instead
- Use:
- trainers
- Compatibility:
- FOCUS R.A.T. Systems with 12 x 142 mm over locknut dimension
- Note:
- Comes with nut, which replaces the original R.A.T. nut
- Manufacturer Number:
- TRA204.F
Type 12:
- Thread Pitch:
- 1.75 mm
- Axle Length:
- 167 mm
- Use:
- trainers
- Manufacturer Number:
- TRA221
Contents:
- 1 x Robert Axle Project indoor trainer thru-axle
- 2 x flat spacer (Type 1 & Type 9 only)
- 1 x X-12 tapered spacer (Type 1 & Type 9 only)
- 1 x flat 6 mm spacer (Type 4 & Type 10 only)
- 1 x nut (Type 4 & Type 11 only)
Weight:
- black/type 1: 82 g
- black/type 2: 72 g
- black/type 4: 82 g
- black/type 6: 76 g
- black/type 9: 90 g
- 100 day return period
- Online since 1998