What Axle Do I Need?

thru axle finder

Our Thru Axle Finder Guarantee.

Robert Axle thru axles are designed and made to fit YOUR bike and YOUR needs! That’s why we’ve created this handy Thru Axle Finder so you can easily find the exact axle you need. When you use the Fitment Finder, we guarantee the result of the Finder, 100%

If the Thru Axle Finder did not list your bike, follow these steps:

1. Pull your thru axle out and check for dimensions.

Many axles now come with the length (L) and thread pitch (TP) measurements printed on the axle. Remove the axle from your bike and double check the dimensions. With those dimensions, skip to Step #4. If you don’t see any dimensions, continue to Step #2.

Maxle-dimensions

2. Measure the length of your axle.

Print our Fitment Guide. *It is very important that you print to “actual size”. Do not “fit”, “shrink”, or “scale” this page when printing. And be sure to choose the right sized paper version. Measure the straight length of your axle shaft. Do not include the axle head or tapered spacer, if there is one.

Axle length is not the same as hub length. A bike with a 12×142 hub standard will have a significantly longer axle.

Axle-Length

3. Measure the thread pitch of your axle.

Place your axle threads on top of the Fitment Guide. (Double check – did you print the guide to actual size?) Thread pitch must match exactly. Determine if it is a 1.0, 1.5, or 1.75 thread pitch.

thread-pitch

4. Use the tabs below to find the axle you need.

5. Select the Kid Trailer Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

152 to 167 mm

Kid Trailer

1.0 mm

160, 167 or 172 mm

Kid Trailer

1.0 mm

175 or 181 mm

Kid Trailer

1.0 mm

214 or 229 mm

Kid Trailer

1.5 mm

159 or 165 mm

Kid Trailer

1.5 mm

172 or 178 mm

Kid Trailer

1.5 mm

182 or 188 mm

Kid Trailer

1.5 mm

209 mm

Kid Trailer

1.5 mm

229 mm

Kid Trailer

1.75 mm

167 mm

Kid Trailer

1.75 mm

174 or 180 mm

Kid Trailer

1.75 mm

192 or 198 mm

Kid Trailer

1.75 mm

209 mm

Kid Trailer

1.75 mm

217 to 229 mm

Kid Trailer

All axles are compatible +/- 2 mm in length.

5. Select the BOB Trailer Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

152 or 167 mm

BOB Trailers

1.0 mm

162, 167 or 172 mm

BOB Trailers

1.0 mm

175 or 181 mm

BOB Trailers

1.0 mm

214 or 229 mm

BOB Trailers

1.5 mm

159 or 165 mm

BOB Trailers

1.5 mm

172 or 178 mm

BOB Trailers

1.5 mm

182 or 188 mm

BOB Trailers

1.5 mm

209 mm

BOB Trailers

1.5 mm

229 mm

BOB Trailers

1.75 mm

167 mm

BOB Trailers

1.75 mm

174 or 180 mm

BOB Trailers

1.75 mm

192 or 198 mm

BOB Trailers

1.75 mm

209 mm

BOB Trailers

1.75 mm

217 or 229 mm

BOB Trailers

All axles are compatible +/- 2 mm in length.

#5. Select the Trainer Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

152 or 167 mm

Resistance Trainer

1.0 mm

160, 167 or 172 mm

Resistance Trainer

1.5 mm

159 or 165 mm

Resistance Trainer

1.5 mm

172 mm

Resistance Trainer

1.5 mm

178 mm

Resistance Trainer

1.75 mm

167 mm

Resistance Trainer

1.75 mm

174 mm

Resistance Trainer

1.75 mm

180 mm

Resistance Trainer

1.75 mm

192 mm

Resistance Trainer

1.75 mm

198 mm

Resistance Trainer

All axles are compatible +/- 2 mm in length.

5. Select the Lightning Bolt-on Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

153 to 158 mm

12mm Bolt-on

1.0 mm

162 to 167 mm

12mm Bolt-on

1.0 mm

167 to 172 mm

12mm Bolt-on

1.5 mm

159 to 165 mm

12mm Bolt-on

1.5 mm

172 mm

12mm Bolt-on

1.5 mm

178 mm

12mm Bolt-on

1.5 mm

209 mm

12mm Bolt-on

1.5 mm

229 mm

12mm Bolt-on

1.75 mm

167 mm

12mm Bolt-on

1.75 mm

174 mm

12mm Bolt-on

1.75 mm

180 mm

12mm Bolt-on

1.75 mm

192 mm

12mm Bolt-on

1.75 mm

198 mm

12mm Bolt-on

1.75 mm

209 mm

12mm Bolt-on

1.75 mm

229 mm

12mm Bolt-on

All axles are compatible +/- 2 mm in length.

5. Select the Front Lightning Bolt-On Axle that fits your fork.

Thread Pitch

Length of Axle Shaft

Application

Part Number

15mm Diameter axles with M15x1.5 Thread

M15 x 1.5

125 mm

15mm Bolt-on Front

M15 x 1.5

142 mm

15mm Bolt-on Front

M15 x 1.5

148 mm

15mm Bolt-on Front

 M15 x 1.5

158 mm

15mm Bolt-on Front

 M15 x 1.5

198 mm

15mm Bolt-on Front

15mm Diameter axles with M14 x 1.5 Thread

M14 x 1.5

127 mm

15mm Bolt-on Front

M14 x 1.5

133 mm

15mm Bolt-on Front

M14 x 1.5

138 mm

15mm Bolt-on Front

M14 x 1.5

145 mm

15mm Bolt-on Front

M14 x 1.5

155 mm

15mm Bolt-on Front

12mm Diameter axles

M12 x 1.0

117 or 123 mm

12mm Bolt-on Front

M12 x 1.5

125 mm

12mm Bolt-on Front

M12 x 1.5

120 mm

12mm Bolt-on Front

M12 x 1.5

145 mm

12mm Bolt-on Front

M12 x 1.75

122 mm

12mm Bolt-on Front

All axles are compatible +/- 2 mm in length.

5. Select the Yoke Mount Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

152 to 167 mm

Yoke Mount Trailers

1.0 mm

160 to 172 mm

Yoke Mount Trailers

1.0 mm

175 to 181 mm

Yoke Mount Trailers

1.0 mm

214 to 229 mm

Yoke Mount Trailers

1.5 mm

159 to 165 mm

Yoke Mount Trailers

1.5 mm

172 or 178 mm

Yoke Mount Trailers

1.5 mm

209 mm

Yoke Mount Trailers

1.5 mm

229 mm

Yoke Mount Trailers

1.75 mm

167 mm

Yoke Mount Trailers

1.75 mm

174 or 180 mm

Yoke Mount Trailers

1.75 mm

192 mm

Yoke Mount Trailers

1.75 mm

192 or 198 mm

Yoke Mount Trailers

1.75 mm

209 mm

Yoke Mount Trailers

1.75 mm

217 to 229 mm

Yoke Mount Trailers

All axles are compatible +/- 2 mm in length.

5. Select the Thunder Bolt-on Axle that fits your bike.

Thread Pitch

Length of Axle Shaft

Application

Part Number

1.0 mm

152 or 167 mm

12mm Bolt-on

1.0 mm

160, 167 or 172 mm

12mm Bolt-on

1.0 mm

175 or 181 mm

12mm Bolt-on

1.0 mm

214 or 229 mm

12mm Bolt-on

1.5 mm

159 or 165 mm

12mm Bolt-on

1.5 mm

172 mm

12mm Bolt-on

1.5 mm

178 mm

12mm Bolt-on

1.5 mm

182 or 188 mm

12mm Bolt-on

1.5 mm

209 mm

12mm Bolt-on

1.5 mm

229 mm

12mm Bolt-on

1.75 mm

167 mm

12mm Bolt-on

1.75 mm

174 mm

12mm Bolt-on

1.75 mm

180 mm

12mm Bolt-on

1.75 mm

192 mm

12mm Bolt-on

1.75 mm

198 mm

12mm Bolt-on

1.75 mm

209 mm

12mm Bolt-on

1.75 mm

217 or 229 mm

12mm Bolt-on

All axles are compatible +/- 2 mm in length.

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