Hub Specs


R45 and Classic hub specifications and wheel building information (pdf)
Hub Type Axle Type Axle Width (mm) Flange Diameter Drive Side (mm) Flange Diameter non-Drive Side (mm) Center to flange drive side (mm) Center to flange non-drive side (mm) Frame attachment options Available spoke hole drilling Upgrade & conversion options Weight Steel* (grams) Weight Ceramic* (grams)
R45 front one piece 100 39.8 39.8 34.8 34.8 QR 16/20/24/28/32 - 102 99
R45 10 Speed one piece 130 51.0 51.0 18.9 34.6 QR 20/24/28/32 - 221 221
R45 11 Speed one piece 130 51.0 51.0 17.0 36.3 QR 20/24/28/32 4 224 218
R45 Campagnolo Rear one piece 130 51.0 51.0 17.1 36.2 QR 20/24/28/32 - 226^ 216^
R45 Disc Front two piece 100 57.4 57.4 30.6 22.3 QR 24/28/32 - 162 158
R45 Disc Rear one piece 135 57.4 57.4 19.3 34.3 QR 24/28/32 4 276 271
R45 Disc Campangnolo Rear one piece 135 57.4 57.4 19.3 34.3 QR 24/28/32 - 281^ 272^
Classic High Flange Front two piece 100 53.0 53.0 34.3 34.3 QR 28/32/36 - 136 -
Classic High Flange Road Rear two piece 130 53.0 53.0 17.2 37.3 QR 28/32/36 1/2/3 276 -
Classic High Flange Mountain Rear one piece 135 53.0 53.0 21.0 33.5 QR/FB 28/32/36 1/2/3 302 -
Classic low flange front two piece 100 40.0 40.0 34.0 34.0 QR 28/32/36 - 112 -
Classic Low Flange Rear two piece 130 53.0 44.0 18.5 38.5 QR 28/32/36 1/2/3 264 -
Classic Mountain Low Flange Rear two piece 135 53.0 44.0 21.0 36.0 QR 28/32/36 1/2/3 266 -
Single Speed Road Rear one piece 130 53.0 53.0 31.2 36.2 QR/FB 28/32/36 1 370a -
Single Speed Mountain Rear one piece 135 53.0 53.0 33.7 33.7 QR/FB 28/32/36 1 375a -
BMX High Flange Front one piece 100 53.0 53.0 34.3 34.3 BO 28/32/36 - 216b -
BMX High Flange Rear one piece 110 53.0 53.0 27.3 27.3 BO 28/32/36 - 388c -
BMX low flange front one piece 100 40.0 40.0 34.0 34.0 BO 28/32/36 - 216b -
BMX Low Flange Rear one piece 110 53.0 44.0 27.0 30.0 BO 28/32/36 - 194b -
Tandem 160 Rear one piece 160 53.0 53.0 33.7 33.7 QR/FB 28/32/36 3 376c -
Tandem 145 Rear one piece 145 53.0 53.0 26.0 29.0 QR/FB 28/32/36 3 376c -
Frame Attachment Options

QR: Quick release only

BO: Bolt-on only

QR/FB: Quick release or FunBolts (FunBolts only compatible with rear one piece axle)




Upgrade & Conversion Options
  1. Convertible to 130mm and 135mm one piece axle (allowing FunBolts option)
  2. Convertible to 130mm, 135mm and 140mm axle widths when using a two piece axle
  3. Convertible to stainless steel driveshell
  4. Convertible to Campagnolo driveshell, requires a kit and an axle

Wheel Building Specifications

Spoke Gauge: 13, 14 or 15 gauge

Spoke Lacing Pattern:

R45: Radial lacing is an acceptable pattern for front wheels and the non-drive side of rear wheels. The drive side of rear hubs must be 2-or-more cross.

R45 Disc: 2-or-more cross

All other hubs 2-or-more cross

Spoke Hole Diameter: 2.5mm





Weight Details

* Add 48g if hub features a stainless steel driveshell

^ Campagnolo hubs come with an 11-tooth lock ring (5.5g). Optional 12-tooth lock ring available aftermarket

a Weight includes 18t stainless steel cog (37g), Single Speed cog spacers (6g) Single Speed cog lock ring (4g) and FunBolts (42g)

b Weight includes BMX axle bolts with washers (44g/pair)

c Weight includes BMX axle bolts with washers (44g/pair), 16t stainless steel cog (32g) and Single Speed cog lock ring (4g)

d Weight includes FunBolts (42g)









ISO hub specifications and wheel building information (pdf)
Hub Type Axle Type Axle Width Flange Diameter Drive Side & non-Drive Side (mm) Center to Flange Drive Side (mm) Center to Flange non-Drive side (mm) Frame Attachment Options Available Spoke Hole Drilling Upgrade & Conversion Options Weight Steel* (grams) Weight Ceramic* (grams)
ISO front two piece  100 57.4 31.3 22.2 QR 28/32/36 4 166 163
ISO 15mm SD front one piece  100 57.4 31.3 22.2 15mm TA 32/36 4 164 161
ISO 15mm LD front one piece  100 57.4 31.6 23.3 15mm TA 32/36 5 197 193
ISO 20mm front one piece  110 57.4 31.6 23.3 20mm TA 32/36 5 207 203
ISO 24mm front one piece  110 57.4 26.5 27.8 24mm TA 32/36 6 240 -
ISO Lefty® SuperMax one piece  Lefty 57.4 35.4 26.5 Lefty® 28/32 - 215**** 211****
ISO Lefty® LD one piece  Lefty 57.4 35.4 19.6 Lefty® 28/32/36 5 200***** 196*****
ISO 135 rear one piece  135 57.4 20.1 33.9 QR/FB 28/32/36 1/3 336 331
ISO 135 x 10/12mm rear one piece  135 57.4 20.1 33.9 10/12mm TA 28/32/36 1/3 320** 315
ISO 142 x 12mm rear one piece  142 57.4 20.1 33.9 12mm TA 28/32/36 1/3 325 320
ISO G1 150 x 10/12 mm rear one piece  150 57.4 25.0 38.5 10/12mm TA 32/36 3 336** -
ISO G2 150 x 10/12 mm rear one piece  150 57.4 28.5 39.6 10/12mm TA 32/36 3 337 333
ISO G2 157 x 12 mm rear one piece  157 57.4 28.5 39.6 12mm TA 32/36 3 344 339
ISO Single Speed rear one piece  135 57.4 32.3 31.0 QR/FB 28/32/36 - 411*** 406
Universal Disc front two piece  100 53.0 31.5 23.0 QR 32/36 - 150 -
Universal Disc rear one piece  135 53.0 21.0 34.0 QR/FB 32/36 1/3 282 -
Universal Disc Single Speed rear one piece  135 53.0 32.0 34.2 QR/FB 32/36 - 427*** -
Universal Disc rear tandem two piece  140 53.0 23.5 31.5 QR 32/36 2/3 284 -
Universal Disc rear tandem one piece  145 53.0 26.0 29.0 QR/FB 32/36 3 366 -
Universal Disc rear tandem one piece  160 53.0 33.7 33.7 QR/FB 32/36 3 388 -
Frame Attachment Options

G1: Generation One - Serial # begins with 1910

G2: Generation Two - Serial # begins with 2910

QR: Quick release only

TA: Thru-axle only

QR/FB: Quick release or FunBolts (FunBolts only compatible with rear one piece axle)






Upgrade & Conversion Options
  1. Convertible to 135mm QR/FB axle, 135 x 10mm TA, 135 x 12mm TA, 142 x 12mm TA and 135mm two piece QR axle
  2. Convertible to 130mm, 135mm and 140mm axle widths when using a two piece axle
  3. Convertible to stainless steel driveshell
  4. Convertible to QR and 15mm thru axle
  5. Convertible to 15mm, 20mm, and *Lefty® axle. Lefty® conversion only works on LD hubs with serial# prefix 1720
  6. Convertible to 15mm, 20mm, and 24mm

Wheel Building Specifications

Spoke Gauge: 13, 14 or 15 gauge

Spoke Lacing Pattern: 2-or-more cross

Spoke Hole Diameter: 2.5mm

Max Spoke Tension: 120 kgf 1200Nm



Weight Details

* Add 48g if hub features a stainless steel driveshell

**Add 5g if using 10mm thru axle

***Weight includes 18t stainless steel cog (16g), Single Speed cog spacers (6g), Single Speed cog lock ring (4g) and FunBolts (42g)

****Weight includes Cannondale® axle bolt (4g)

*****Weight includes 1mm disc spacer (3g) and Cannondale® axle bolt (4g)