MRP Race Axle Bolt-On Rear Thru-Axle - 1.5x172 MFPN=00.4318.005.033 ISM’s Performance Recreation saddles are

ISM’s Performance Recreation saddles are based on the same platform as ISM’s Performance Short saddles but feature extra padding for more long-mile comfort

the darker the lens to keep you performing at your best no matter the conditions

For 6v 3w dynamo hubs

Features integrated U-lock carrying slot

but not compatible with Shimano GRX front derailleurs

MRP Race Axle Bolt-On Rear Thru-Axle - 1.5x172 MFPN=00.4318.005.033 ISM’s Performance Recreation saddles areReplaces QR thru axles for a simple, lightweight and stiff alternative compatible with a variety of frame fitments See Fit Guide at https: www. mrpbike. com race axles Model Bolt On Description 12x172mm Rear Axle Axle Length (mm) 172 Thread Pitch M12x1. 5 Color Black Measurement 1. 5X172