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Trek 520 #1
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YearSpan: 2020
Cost: 1999
S_T_E_M:  
BarTy: Drop
StemM: Bontranger Elite, 31.8, 7 degree
BarD: 31.8
BarM: Bontranger Comp VR-C 31.8
SteerD: 28.6
SeatPostD: 27.2
C_R_A_N_K: ----------
CrankTy: HollowTech
CrankM: Shimano Alivio T4060, 48/36/26
BBModel: BB52
BBShell: 68BSA
SpindleL: n/a
G_E_A_R: ----------
ShiftTy: STI
ShifterM: Shimano Sora R3000, 9 speed
FrontDer: Shimano Sora R3030, 34.9mm (w/28.6 adapter) clamp
RearDer: Shimano Alivio M4000, long cage, 36T max cog
CassetteM: Shimano HG200, 11-36, 9-speed
ChainM: KMC X9
CogCount: 3x9
FrontCogs: 48/36/26
RearCogs: 11-36
LowGear: 0.72
HighGear: 4.4
B_R_A_K_E:  
BrakeTy: CableDisk
BrakeM: TRP Spyre C2.0 Mechanical disk
BrakeLeverM: Shimano Sora R3000, 9 speed
BrakeMount: I.S.
RotorD: 160
W_H_E_E_L:  
FrontHub: QR
RearHub: Shimano M475, 6-bolt disc, 135x5mm
FrontAxle: Dr9x100
RearAxle: Dr10x135
RimM: Bontrager Affinity Disc, Presta
RimD: 622
Spokes: 36

Frame: Trek520

Store Inventories
The following stores stock this model.
Store NameAddressPhoneSizes in stock
Bicycle Sports Pacific (Vancouver)999 Pacific Street604 682-4537   54cm

Part Replacement Summary:
 - Seatpost: The seatpost diameter is standard.
 - Crank: It has a standard Hollowtech crankset. There are nowdays numerous alternative cranksets.
 - Stem: The fork steerer tube diameter is standard, and there are many different stems available for that diameter.
 - Wheels: Both the front and rear axles are the most standard widths. 100 and 135mm with quick release. Many wheels are available for these widths. Because it has disk brakes, you must order wheels with the standard 6 bolt disk.

However, they have some sort of non-standard 5mm Thru-skew quick release. It might be that if you bought new generic wheels, you could just use the standard quick release that comes with your wheels.

Note that fork is not steel, it is aluminum.