Difference between revisions of "Spoke Length Notes"
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===MTB Wheels=== | ===MTB Wheels=== | ||
*XTR Front on Mavic 819 Disk, 259L, 260R | *XTR Front on Mavic 819 Disk, 259L, 260R | ||
+ | *XTR Front M978 QR15 on Mavic 819 Disk, 260L, 261R | ||
*XTR Rear on Mavic 819 Disk, 260L, 258R | *XTR Rear on Mavic 819 Disk, 260L, 258R | ||
Revision as of 12:21, 16 December 2008
Contents
- 1 Measuring Hubs
- 2 Measuring Rims
- 3 Rims
- 4 Hubs
- 5 Wheelsets
Measuring Hubs
Shimano specifies hub flange offsets from the dropout face to the outside of the flange. Some calculations specify the center of the flange. Some specify the inside of the flange. This will change your results.
http://www.geocities.com/spokeanwheel/measure.htm#hf
http://www.damonrinard.com/spocalc.htm#MeasureHubAndRim
http://www.wheelpro.co.uk/spokecalc/measure.html
Measuring Rims
http://www.geocities.com/spokeanwheel/measure.htm#rm
http://i32.photobucket.com/albums/d7/k4drd/Bicycles/MeasuringERD.jpg
http://www.damonrinard.com/spocalc.htm#MeasureHubAndRim
Rims
- Mavic 819 Disc ERD - 532mm (Official), 518.5g. with special nipple nipples.
- Use 534mm or 533 erd in practice. QBP uses 535mm
- Velocity USA 650B Blunt rims - ISO 44-584. 32 hole. 562 ERD. Claimed weight 459g. Actual weight 464.8g.
- Velocity Synergy 650b OCR rims - ISO 44-584. 32 hole. 567 ERD. 3mm offset
- Salsa Delgato 29er Rims - ERD 604
- Alex DA28 - ERD 584.8, 480g. (Quality lists ERD as 587mm, but 585mm in fact builds better)
- DT Swiss RR1.1 - 700c, ERD 596mm, 415g. TechSpec
- Quality lists ERD as 597, DT lists ERD as 599. I belive it's really 596mm.
Hubs
Shimano XTR
Rear FH-M975
- Hole PCD (mm) - Left 44/Right 45
- Dish - 6.6mm
- Flange distance - Official -le. 35.3mm, ri. 22.1mm (on center -le. 33.65mm, ri. 20.45mm)
- Ø of spoke hole - 2.6mm
Front HB-M975
- Hole PCD (mm) - Left 44/Right 40
- Dish - 5.4mm
- Flange distance - (on center -le. 23mm, ri. 34mm)
- Ø of spoke hole - 2.6mm
Front HB-M978 QR15
- Hole PCD (mm) - Left 44/Right 44
- Dish - ?mm
- Flange distance - QBP -le. 22mm, ri. 33mm
- Ø of spoke hole - 2.6mm
Shimano XT FH-M775
Rear
- Hole PCD (mm) - Left 44/Right 45
- Flange Distance - 57.4mm (on center - 54.1
- Dish - 6.6mm
- Flange distance - Official -le. 35.3mm, ri. 22.1mm (on center -le. 33.65mm, ri. 20.45mm)
- Ø of spoke hole - 2.6mm
Deore XT FH-M765 Centerloc
Front
- Pitch Circle Diameter: 44mm L., 41mm R.
- Flange Distance: 24.8mm L., 35.8mm R.
- Ø of spoke hole: 2.6mm
- Holes: 32
Rear
- Pitch Circle Diameter: 45mm L., 45mm R.
- Flange Distance: 35.35mm L., 23.05mm R.
- Ø of spoke hole: 2.6mm
- Holes: 32
Shimano 105 HB-5600
Front
- Pitch Circle Diameter: 38mm
- Flange Distance: 34mm
- Ø of spoke hole: 2.6mm
- Holes: 32
Formula CL-91
Rotor Adapter Type.
- Front 100mm hub. 32 hole
- Flange Distance from Center: L- 27.5mm, R- 17.5mm
- Pitch Circle Diameter: L- 44.5mm, R- 44.5mm
- Ø of spoke hole: 2.5mm
Velocity USA 'Road Disc' 130mm rear hub
32 hole. Actual weight (no QR) - 349g.
- Pitch Circle Diameter: 62mm L., 51.5mm R.
- Flange Distance: 31mm L., 17mm R.
- Ø of spoke hole: 2.6mm
- Holes: 32
Hadley H500405 Single Speed Hub
- Pitch Circle Diameter: 60mm L., 60mm R.
- Flange Distance: 33.2mm L., 33.2mm R.
- Ø of spoke hole: 2.5mm
- Holes: 32
CycleOps PowerTap
- Pitch Circle Diameter: 70mm, R&L
- Flange Distance: 31.7mm L., 17.4mm R.
- Ø of spoke hole: 2.5mm
- Holes: 32
Shimano Alfine SG-S501
Non-Drive Side Center to Flange: 31.8 mm Drive Side Center to Flange: 25.5 mm Non-Drive Side Flange Diameter: 104.3 mm Drive Side Flange Diameter: 104.3 mm
Wheelsets
MTB Wheels
- XTR Front on Mavic 819 Disk, 259L, 260R
- XTR Front M978 QR15 on Mavic 819 Disk, 260L, 261R
- XTR Rear on Mavic 819 Disk, 260L, 258R
Road Wheels
- Dura-ace 28 hole hub on DT Swiss 1.1, 2 cross, 288mm spokes on both sides.
- Dura-ace 28 hole Rear hub on DT Swiss 1.1, 2/3 cross, D294mm, ND286mm
- 105 HB-5600 Hub / DA-28 Alex Rim / 2 Cross, 280mm Spokes both sides.
650b Sizer Cycle Wheel
- CycleOps PowerTap 32 hole Rear hub on Velocity Synergy 650b OCR, 2/3 cross, D272mm, ND261mm
Cross Wheels
- XT M775 32h Front on Alex DA28 700c rim, 3 cross, 286L, 287R
- XT M775 32h Rear on Alex DA28 700c rim, 3 cross, 286(-)L, 284(-)R
- Velocity 130mm Disk hub on Alex DA28 700c rim, 3 cross, 282L, 282R
- Shimano Alfine 32h Rear on Alex DA28 700c rim, 3 cross, 279.33L, 278.64R
DH Wheels
- Hadley H500145 R2.2 20mm Front on Mavic EX823 UST, 3 cross, 32 hole, 256(-)L, 257(-)R
Cheapo 29er
Salsa Delgato Rims w/ Deore XT Centerloc hubs
Front:
- ERD 604
- Pitch Circle Diameter: 44mm L., 41mm R.
- Flange Distance: 24.8mm L., 35.8mm R.
- Dia of holes: 2.6mm
- Holes: 32
- Crosses: 3 L, 3 R.
- Spokes: DT 1.8 Straight
- Nipples: DT 1.8/12mm
- Spokes 293mm L., 295mm R.
Rear:
- ERD 604
- Pitch Circle Diameter: 45mm L., 45mm R.
- Flange Distance: 35.35mm L., 23.05mm R.
- Dia of holes: 2.6mm
- Holes: 32
- Crosses: 3 L, 3 R.
- Spokes: DT 1.8 Straight
- Nipples: DT 1.8/12mm
- Spokes 294mm L., 293mm R.